Home / 15,451.91-21,323.46-8,737.61

Finding the Fourth Proportional to 15,451.91, 21,323.46 and 8,737.61

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Solution

The fourth proportional to 15,451.91, 21,323.46 and 8,737.61 is: 12,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.91 : 21,323.46 = 8,737.61 : x
  2. Step 2: Convert to fraction form
    15,451.91/21,323.46 = 8,737.61/x
  3. Step 3: Cross multiply
    15,451.91x = 21,323.46 × 8,737.61
  4. Step 4: Simplify right side
    15,451.91x = 186,316,077.33
  5. Step 5: Solve for x
    x = 186,316,077.33/15,451.91
  6. Step 6: Final answer
    x = 12,057.80

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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.