Home / 15,924.71-21,976.85-8,851.25

Finding the Fourth Proportional to 15,924.71, 21,976.85 and 8,851.25

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Solution

The fourth proportional to 15,924.71, 21,976.85 and 8,851.25 is: 12,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.71 : 21,976.85 = 8,851.25 : x
  2. Step 2: Convert to fraction form
    15,924.71/21,976.85 = 8,851.25/x
  3. Step 3: Cross multiply
    15,924.71x = 21,976.85 × 8,851.25
  4. Step 4: Simplify right side
    15,924.71x = 194,522,549.31
  5. Step 5: Solve for x
    x = 194,522,549.31/15,924.71
  6. Step 6: Final answer
    x = 12,215.14

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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.