Home / 15,410.91-21,267.11-8,337.39

Finding the Fourth Proportional to 15,410.91, 21,267.11 and 8,337.39

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Solution

The fourth proportional to 15,410.91, 21,267.11 and 8,337.39 is: 11,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.91 : 21,267.11 = 8,337.39 : x
  2. Step 2: Convert to fraction form
    15,410.91/21,267.11 = 8,337.39/x
  3. Step 3: Cross multiply
    15,410.91x = 21,267.11 × 8,337.39
  4. Step 4: Simplify right side
    15,410.91x = 177,312,148.56
  5. Step 5: Solve for x
    x = 177,312,148.56/15,410.91
  6. Step 6: Final answer
    x = 11,505.62

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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.