Home / 11,332.20-15,635.25-7,138.02

Finding the Fourth Proportional to 11,332.20, 15,635.25 and 7,138.02

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Solution

The fourth proportional to 11,332.20, 15,635.25 and 7,138.02 is: 9,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332.20 : 15,635.25 = 7,138.02 : x
  2. Step 2: Convert to fraction form
    11,332.20/15,635.25 = 7,138.02/x
  3. Step 3: Cross multiply
    11,332.20x = 15,635.25 × 7,138.02
  4. Step 4: Simplify right side
    11,332.20x = 111,604,727.21
  5. Step 5: Solve for x
    x = 111,604,727.21/11,332.20
  6. Step 6: Final answer
    x = 9,848.46

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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.