Home / 15,139.05-22,712.22-4,750.80

Finding the Fourth Proportional to 15,139.05, 22,712.22 and 4,750.80

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Solution

The fourth proportional to 15,139.05, 22,712.22 and 4,750.80 is: 7,127.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.05 : 22,712.22 = 4,750.80 : x
  2. Step 2: Convert to fraction form
    15,139.05/22,712.22 = 4,750.80/x
  3. Step 3: Cross multiply
    15,139.05x = 22,712.22 × 4,750.80
  4. Step 4: Simplify right side
    15,139.05x = 107,901,214.78
  5. Step 5: Solve for x
    x = 107,901,214.78/15,139.05
  6. Step 6: Final answer
    x = 7,127.34

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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.