Home / 11,158.20-15,390.54-9,758.52

Finding the Fourth Proportional to 11,158.20, 15,390.54 and 9,758.52

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Solution

The fourth proportional to 11,158.20, 15,390.54 and 9,758.52 is: 13,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.20 : 15,390.54 = 9,758.52 : x
  2. Step 2: Convert to fraction form
    11,158.20/15,390.54 = 9,758.52/x
  3. Step 3: Cross multiply
    11,158.20x = 15,390.54 × 9,758.52
  4. Step 4: Simplify right side
    11,158.20x = 150,188,892.40
  5. Step 5: Solve for x
    x = 150,188,892.40/11,158.20
  6. Step 6: Final answer
    x = 13,459.96

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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.