Home / 8,587.31-11,850.49-5,230.12

Finding the Fourth Proportional to 8,587.31, 11,850.49 and 5,230.12

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Solution

The fourth proportional to 8,587.31, 11,850.49 and 5,230.12 is: 7,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.31 : 11,850.49 = 5,230.12 : x
  2. Step 2: Convert to fraction form
    8,587.31/11,850.49 = 5,230.12/x
  3. Step 3: Cross multiply
    8,587.31x = 11,850.49 × 5,230.12
  4. Step 4: Simplify right side
    8,587.31x = 61,979,484.76
  5. Step 5: Solve for x
    x = 61,979,484.76/8,587.31
  6. Step 6: Final answer
    x = 7,217.57

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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.