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Finding the Fourth Proportional to 8,377.32, 12,570.84 and 3,760.32

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Solution

The fourth proportional to 8,377.32, 12,570.84 and 3,760.32 is: 5,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.32 : 12,570.84 = 3,760.32 : x
  2. Step 2: Convert to fraction form
    8,377.32/12,570.84 = 3,760.32/x
  3. Step 3: Cross multiply
    8,377.32x = 12,570.84 × 3,760.32
  4. Step 4: Simplify right side
    8,377.32x = 47,270,381.07
  5. Step 5: Solve for x
    x = 47,270,381.07/8,377.32
  6. Step 6: Final answer
    x = 5,642.66

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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.