Home / 15,139.10-22,712.29-4,750.85

Finding the Fourth Proportional to 15,139.10, 22,712.29 and 4,750.85

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Solution

The fourth proportional to 15,139.10, 22,712.29 and 4,750.85 is: 7,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.10 : 22,712.29 = 4,750.85 : x
  2. Step 2: Convert to fraction form
    15,139.10/22,712.29 = 4,750.85/x
  3. Step 3: Cross multiply
    15,139.10x = 22,712.29 × 4,750.85
  4. Step 4: Simplify right side
    15,139.10x = 107,902,569.39
  5. Step 5: Solve for x
    x = 107,902,569.39/15,139.10
  6. Step 6: Final answer
    x = 7,127.41

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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.