Home / 9,376.50-12,950.20-6,387.15

Finding the Fourth Proportional to 9,376.50, 12,950.20 and 6,387.15

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Solution

The fourth proportional to 9,376.50, 12,950.20 and 6,387.15 is: 8,821.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.50 : 12,950.20 = 6,387.15 : x
  2. Step 2: Convert to fraction form
    9,376.50/12,950.20 = 6,387.15/x
  3. Step 3: Cross multiply
    9,376.50x = 12,950.20 × 6,387.15
  4. Step 4: Simplify right side
    9,376.50x = 82,714,869.93
  5. Step 5: Solve for x
    x = 82,714,869.93/9,376.50
  6. Step 6: Final answer
    x = 8,821.51

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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.