Home / 15,023.56-22,521.39-7,129.78

Finding the Fourth Proportional to 15,023.56, 22,521.39 and 7,129.78

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Solution

The fourth proportional to 15,023.56, 22,521.39 and 7,129.78 is: 10,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.56 : 22,521.39 = 7,129.78 : x
  2. Step 2: Convert to fraction form
    15,023.56/22,521.39 = 7,129.78/x
  3. Step 3: Cross multiply
    15,023.56x = 22,521.39 × 7,129.78
  4. Step 4: Simplify right side
    15,023.56x = 160,572,555.99
  5. Step 5: Solve for x
    x = 160,572,555.99/15,023.56
  6. Step 6: Final answer
    x = 10,688.05

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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.