Home / 9,331.52-12,877.79-5,353.88

Finding the Fourth Proportional to 9,331.52, 12,877.79 and 5,353.88

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Solution

The fourth proportional to 9,331.52, 12,877.79 and 5,353.88 is: 7,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.52 : 12,877.79 = 5,353.88 : x
  2. Step 2: Convert to fraction form
    9,331.52/12,877.79 = 5,353.88/x
  3. Step 3: Cross multiply
    9,331.52x = 12,877.79 × 5,353.88
  4. Step 4: Simplify right side
    9,331.52x = 68,946,051.17
  5. Step 5: Solve for x
    x = 68,946,051.17/9,331.52
  6. Step 6: Final answer
    x = 7,388.52

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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.