Home / 15,821.64-23,724.45-5,287.91

Finding the Fourth Proportional to 15,821.64, 23,724.45 and 5,287.91

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Solution

The fourth proportional to 15,821.64, 23,724.45 and 5,287.91 is: 7,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.64 : 23,724.45 = 5,287.91 : x
  2. Step 2: Convert to fraction form
    15,821.64/23,724.45 = 5,287.91/x
  3. Step 3: Cross multiply
    15,821.64x = 23,724.45 × 5,287.91
  4. Step 4: Simplify right side
    15,821.64x = 125,452,637.78
  5. Step 5: Solve for x
    x = 125,452,637.78/15,821.64
  6. Step 6: Final answer
    x = 7,929.18

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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.