Home / 13,251.60-19,877.40-7,009.20

Finding the Fourth Proportional to 13,251.60, 19,877.40 and 7,009.20

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Solution

The fourth proportional to 13,251.60, 19,877.40 and 7,009.20 is: 10,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.60 : 19,877.40 = 7,009.20 : x
  2. Step 2: Convert to fraction form
    13,251.60/19,877.40 = 7,009.20/x
  3. Step 3: Cross multiply
    13,251.60x = 19,877.40 × 7,009.20
  4. Step 4: Simplify right side
    13,251.60x = 139,324,672.08
  5. Step 5: Solve for x
    x = 139,324,672.08/13,251.60
  6. Step 6: Final answer
    x = 10,513.80

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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.