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Finding the Fourth Proportional to 7,387, 11,080.51 and 7,201.10

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Solution

The fourth proportional to 7,387, 11,080.51 and 7,201.10 is: 10,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387 : 11,080.51 = 7,201.10 : x
  2. Step 2: Convert to fraction form
    7,387/11,080.51 = 7,201.10/x
  3. Step 3: Cross multiply
    7,387x = 11,080.51 × 7,201.10
  4. Step 4: Simplify right side
    7,387x = 79,791,860.56
  5. Step 5: Solve for x
    x = 79,791,860.56/7,387
  6. Step 6: Final answer
    x = 10,801.66

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.