Home / 9,385.34-12,951.56-5,136.39

Finding the Fourth Proportional to 9,385.34, 12,951.56 and 5,136.39

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Solution

The fourth proportional to 9,385.34, 12,951.56 and 5,136.39 is: 7,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.34 : 12,951.56 = 5,136.39 : x
  2. Step 2: Convert to fraction form
    9,385.34/12,951.56 = 5,136.39/x
  3. Step 3: Cross multiply
    9,385.34x = 12,951.56 × 5,136.39
  4. Step 4: Simplify right side
    9,385.34x = 66,524,276.11
  5. Step 5: Solve for x
    x = 66,524,276.11/9,385.34
  6. Step 6: Final answer
    x = 7,088.11

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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.