Home / 11,353.80-15,665.76-6,635.92

Finding the Fourth Proportional to 11,353.80, 15,665.76 and 6,635.92

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Solution

The fourth proportional to 11,353.80, 15,665.76 and 6,635.92 is: 9,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.80 : 15,665.76 = 6,635.92 : x
  2. Step 2: Convert to fraction form
    11,353.80/15,665.76 = 6,635.92/x
  3. Step 3: Cross multiply
    11,353.80x = 15,665.76 × 6,635.92
  4. Step 4: Simplify right side
    11,353.80x = 103,956,730.10
  5. Step 5: Solve for x
    x = 103,956,730.10/11,353.80
  6. Step 6: Final answer
    x = 9,156.12

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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.