Home / 11,394.32-15,731.28-8,736.62

Finding the Fourth Proportional to 11,394.32, 15,731.28 and 8,736.62

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Solution

The fourth proportional to 11,394.32, 15,731.28 and 8,736.62 is: 12,061.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.32 : 15,731.28 = 8,736.62 : x
  2. Step 2: Convert to fraction form
    11,394.32/15,731.28 = 8,736.62/x
  3. Step 3: Cross multiply
    11,394.32x = 15,731.28 × 8,736.62
  4. Step 4: Simplify right side
    11,394.32x = 137,438,215.47
  5. Step 5: Solve for x
    x = 137,438,215.47/11,394.32
  6. Step 6: Final answer
    x = 12,061.99

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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.