Home / 15,812.50-21,819.36-8,737.96

Finding the Fourth Proportional to 15,812.50, 21,819.36 and 8,737.96

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Solution

The fourth proportional to 15,812.50, 21,819.36 and 8,737.96 is: 12,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.50 : 21,819.36 = 8,737.96 : x
  2. Step 2: Convert to fraction form
    15,812.50/21,819.36 = 8,737.96/x
  3. Step 3: Cross multiply
    15,812.50x = 21,819.36 × 8,737.96
  4. Step 4: Simplify right side
    15,812.50x = 190,656,694.91
  5. Step 5: Solve for x
    x = 190,656,694.91/15,812.50
  6. Step 6: Final answer
    x = 12,057.34

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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.