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Finding the Fourth Proportional to 6,872.53, 9,482.51 and 3,887.71

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Solution

The fourth proportional to 6,872.53, 9,482.51 and 3,887.71 is: 5,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.53 : 9,482.51 = 3,887.71 : x
  2. Step 2: Convert to fraction form
    6,872.53/9,482.51 = 3,887.71/x
  3. Step 3: Cross multiply
    6,872.53x = 9,482.51 × 3,887.71
  4. Step 4: Simplify right side
    6,872.53x = 36,865,248.95
  5. Step 5: Solve for x
    x = 36,865,248.95/6,872.53
  6. Step 6: Final answer
    x = 5,364.15

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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.