Home / 15,742.32-21,718.24-9,024.28

Finding the Fourth Proportional to 15,742.32, 21,718.24 and 9,024.28

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Solution

The fourth proportional to 15,742.32, 21,718.24 and 9,024.28 is: 12,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.32 : 21,718.24 = 9,024.28 : x
  2. Step 2: Convert to fraction form
    15,742.32/21,718.24 = 9,024.28/x
  3. Step 3: Cross multiply
    15,742.32x = 21,718.24 × 9,024.28
  4. Step 4: Simplify right side
    15,742.32x = 195,991,478.87
  5. Step 5: Solve for x
    x = 195,991,478.87/15,742.32
  6. Step 6: Final answer
    x = 12,449.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.