Home / 15,140.76-22,711.38-7,724.28

Finding the Fourth Proportional to 15,140.76, 22,711.38 and 7,724.28

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Solution

The fourth proportional to 15,140.76, 22,711.38 and 7,724.28 is: 11,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.76 : 22,711.38 = 7,724.28 : x
  2. Step 2: Convert to fraction form
    15,140.76/22,711.38 = 7,724.28/x
  3. Step 3: Cross multiply
    15,140.76x = 22,711.38 × 7,724.28
  4. Step 4: Simplify right side
    15,140.76x = 175,429,058.31
  5. Step 5: Solve for x
    x = 175,429,058.31/15,140.76
  6. Step 6: Final answer
    x = 11,586.54

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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.