Home / 8,988.52-12,402.16-5,212.30

Finding the Fourth Proportional to 8,988.52, 12,402.16 and 5,212.30

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Solution

The fourth proportional to 8,988.52, 12,402.16 and 5,212.30 is: 7,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.52 : 12,402.16 = 5,212.30 : x
  2. Step 2: Convert to fraction form
    8,988.52/12,402.16 = 5,212.30/x
  3. Step 3: Cross multiply
    8,988.52x = 12,402.16 × 5,212.30
  4. Step 4: Simplify right side
    8,988.52x = 64,643,778.57
  5. Step 5: Solve for x
    x = 64,643,778.57/8,988.52
  6. Step 6: Final answer
    x = 7,191.82

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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.