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Finding the Fourth Proportional to 14,676.19, 20,253.14 and 8,388.70

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Solution

The fourth proportional to 14,676.19, 20,253.14 and 8,388.70 is: 11,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,676.19 : 20,253.14 = 8,388.70 : x
  2. Step 2: Convert to fraction form
    14,676.19/20,253.14 = 8,388.70/x
  3. Step 3: Cross multiply
    14,676.19x = 20,253.14 × 8,388.70
  4. Step 4: Simplify right side
    14,676.19x = 169,897,454.40
  5. Step 5: Solve for x
    x = 169,897,454.40/14,676.19
  6. Step 6: Final answer
    x = 11,576.40

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Half scale
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Double scale
Find fourth proportional to 14,677.19, 20,254.52 and 8,389.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.