Home / 8,207.53-11,316.51-5,691.81

Finding the Fourth Proportional to 8,207.53, 11,316.51 and 5,691.81

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Solution

The fourth proportional to 8,207.53, 11,316.51 and 5,691.81 is: 7,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.53 : 11,316.51 = 5,691.81 : x
  2. Step 2: Convert to fraction form
    8,207.53/11,316.51 = 5,691.81/x
  3. Step 3: Cross multiply
    8,207.53x = 11,316.51 × 5,691.81
  4. Step 4: Simplify right side
    8,207.53x = 64,411,424.78
  5. Step 5: Solve for x
    x = 64,411,424.78/8,207.53
  6. Step 6: Final answer
    x = 7,847.85

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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.