Home / 15,541.86-21,447.03-8,826.61

Finding the Fourth Proportional to 15,541.86, 21,447.03 and 8,826.61

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Solution

The fourth proportional to 15,541.86, 21,447.03 and 8,826.61 is: 12,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.86 : 21,447.03 = 8,826.61 : x
  2. Step 2: Convert to fraction form
    15,541.86/21,447.03 = 8,826.61/x
  3. Step 3: Cross multiply
    15,541.86x = 21,447.03 × 8,826.61
  4. Step 4: Simplify right side
    15,541.86x = 189,304,569.47
  5. Step 5: Solve for x
    x = 189,304,569.47/15,541.86
  6. Step 6: Final answer
    x = 12,180.30

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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.