Home / 10,013.60-15,008.40-4,167.20

Finding the Fourth Proportional to 10,013.60, 15,008.40 and 4,167.20

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Solution

The fourth proportional to 10,013.60, 15,008.40 and 4,167.20 is: 6,245.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.60 : 15,008.40 = 4,167.20 : x
  2. Step 2: Convert to fraction form
    10,013.60/15,008.40 = 4,167.20/x
  3. Step 3: Cross multiply
    10,013.60x = 15,008.40 × 4,167.20
  4. Step 4: Simplify right side
    10,013.60x = 62,543,004.48
  5. Step 5: Solve for x
    x = 62,543,004.48/10,013.60
  6. Step 6: Final answer
    x = 6,245.81

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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.