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Finding the Fourth Proportional to 12,598.30, 18,897.45 and 8,451.10

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Solution

The fourth proportional to 12,598.30, 18,897.45 and 8,451.10 is: 12,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.30 : 18,897.45 = 8,451.10 : x
  2. Step 2: Convert to fraction form
    12,598.30/18,897.45 = 8,451.10/x
  3. Step 3: Cross multiply
    12,598.30x = 18,897.45 × 8,451.10
  4. Step 4: Simplify right side
    12,598.30x = 159,704,239.70
  5. Step 5: Solve for x
    x = 159,704,239.70/12,598.30
  6. Step 6: Final answer
    x = 12,676.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.