Home / 15,326.54-21,151.25-8,612.15

Finding the Fourth Proportional to 15,326.54, 21,151.25 and 8,612.15

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Solution

The fourth proportional to 15,326.54, 21,151.25 and 8,612.15 is: 11,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.54 : 21,151.25 = 8,612.15 : x
  2. Step 2: Convert to fraction form
    15,326.54/21,151.25 = 8,612.15/x
  3. Step 3: Cross multiply
    15,326.54x = 21,151.25 × 8,612.15
  4. Step 4: Simplify right side
    15,326.54x = 182,157,700.48
  5. Step 5: Solve for x
    x = 182,157,700.48/15,326.54
  6. Step 6: Final answer
    x = 11,885.11

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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.