Home / 8,687.35-13,030.92-2,113.55

Finding the Fourth Proportional to 8,687.35, 13,030.92 and 2,113.55

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Solution

The fourth proportional to 8,687.35, 13,030.92 and 2,113.55 is: 3,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.35 : 13,030.92 = 2,113.55 : x
  2. Step 2: Convert to fraction form
    8,687.35/13,030.92 = 2,113.55/x
  3. Step 3: Cross multiply
    8,687.35x = 13,030.92 × 2,113.55
  4. Step 4: Simplify right side
    8,687.35x = 27,541,500.97
  5. Step 5: Solve for x
    x = 27,541,500.97/8,687.35
  6. Step 6: Final answer
    x = 3,170.30

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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.