Home / 15,612.09-21,545.24-8,898.74

Finding the Fourth Proportional to 15,612.09, 21,545.24 and 8,898.74

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Solution

The fourth proportional to 15,612.09, 21,545.24 and 8,898.74 is: 12,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.09 : 21,545.24 = 8,898.74 : x
  2. Step 2: Convert to fraction form
    15,612.09/21,545.24 = 8,898.74/x
  3. Step 3: Cross multiply
    15,612.09x = 21,545.24 × 8,898.74
  4. Step 4: Simplify right side
    15,612.09x = 191,725,489.00
  5. Step 5: Solve for x
    x = 191,725,489.00/15,612.09
  6. Step 6: Final answer
    x = 12,280.58

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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.