Home / 15,281.28-22,818.45-12,125.86

Finding the Fourth Proportional to 15,281.28, 22,818.45 and 12,125.86

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Solution

The fourth proportional to 15,281.28, 22,818.45 and 12,125.86 is: 18,106.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.28 : 22,818.45 = 12,125.86 : x
  2. Step 2: Convert to fraction form
    15,281.28/22,818.45 = 12,125.86/x
  3. Step 3: Cross multiply
    15,281.28x = 22,818.45 × 12,125.86
  4. Step 4: Simplify right side
    15,281.28x = 276,693,330.12
  5. Step 5: Solve for x
    x = 276,693,330.12/15,281.28
  6. Step 6: Final answer
    x = 18,106.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.