Home / 16,886.40-23,304.72-9,812.70

Finding the Fourth Proportional to 16,886.40, 23,304.72 and 9,812.70

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Solution

The fourth proportional to 16,886.40, 23,304.72 and 9,812.70 is: 13,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,886.40 : 23,304.72 = 9,812.70 : x
  2. Step 2: Convert to fraction form
    16,886.40/23,304.72 = 9,812.70/x
  3. Step 3: Cross multiply
    16,886.40x = 23,304.72 × 9,812.70
  4. Step 4: Simplify right side
    16,886.40x = 228,682,225.94
  5. Step 5: Solve for x
    x = 228,682,225.94/16,886.40
  6. Step 6: Final answer
    x = 13,542.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.