Home / 11,235.28-15,505.41-6,456.76

Finding the Fourth Proportional to 11,235.28, 15,505.41 and 6,456.76

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Solution

The fourth proportional to 11,235.28, 15,505.41 and 6,456.76 is: 8,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.28 : 15,505.41 = 6,456.76 : x
  2. Step 2: Convert to fraction form
    11,235.28/15,505.41 = 6,456.76/x
  3. Step 3: Cross multiply
    11,235.28x = 15,505.41 × 6,456.76
  4. Step 4: Simplify right side
    11,235.28x = 100,114,711.07
  5. Step 5: Solve for x
    x = 100,114,711.07/11,235.28
  6. Step 6: Final answer
    x = 8,910.74

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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.