Home / 9,385.33-12,951.90-5,136.76

Finding the Fourth Proportional to 9,385.33, 12,951.90 and 5,136.76

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Solution

The fourth proportional to 9,385.33, 12,951.90 and 5,136.76 is: 7,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.33 : 12,951.90 = 5,136.76 : x
  2. Step 2: Convert to fraction form
    9,385.33/12,951.90 = 5,136.76/x
  3. Step 3: Cross multiply
    9,385.33x = 12,951.90 × 5,136.76
  4. Step 4: Simplify right side
    9,385.33x = 66,530,801.84
  5. Step 5: Solve for x
    x = 66,530,801.84/9,385.33
  6. Step 6: Final answer
    x = 7,088.81

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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.