Home / 8,376.04-12,538.14-7,131.88

Finding the Fourth Proportional to 8,376.04, 12,538.14 and 7,131.88

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Solution

The fourth proportional to 8,376.04, 12,538.14 and 7,131.88 is: 10,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.04 : 12,538.14 = 7,131.88 : x
  2. Step 2: Convert to fraction form
    8,376.04/12,538.14 = 7,131.88/x
  3. Step 3: Cross multiply
    8,376.04x = 12,538.14 × 7,131.88
  4. Step 4: Simplify right side
    8,376.04x = 89,420,509.90
  5. Step 5: Solve for x
    x = 89,420,509.90/8,376.04
  6. Step 6: Final answer
    x = 10,675.75

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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.