Home / 11,189.52-15,440.04-6,472.08

Finding the Fourth Proportional to 11,189.52, 15,440.04 and 6,472.08

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Solution

The fourth proportional to 11,189.52, 15,440.04 and 6,472.08 is: 8,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.52 : 15,440.04 = 6,472.08 : x
  2. Step 2: Convert to fraction form
    11,189.52/15,440.04 = 6,472.08/x
  3. Step 3: Cross multiply
    11,189.52x = 15,440.04 × 6,472.08
  4. Step 4: Simplify right side
    11,189.52x = 99,929,174.08
  5. Step 5: Solve for x
    x = 99,929,174.08/11,189.52
  6. Step 6: Final answer
    x = 8,930.60

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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.