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Finding the Fourth Proportional to 8,895.62, 12,281.68 and 5,710.29

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Solution

The fourth proportional to 8,895.62, 12,281.68 and 5,710.29 is: 7,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.62 : 12,281.68 = 5,710.29 : x
  2. Step 2: Convert to fraction form
    8,895.62/12,281.68 = 5,710.29/x
  3. Step 3: Cross multiply
    8,895.62x = 12,281.68 × 5,710.29
  4. Step 4: Simplify right side
    8,895.62x = 70,131,954.49
  5. Step 5: Solve for x
    x = 70,131,954.49/8,895.62
  6. Step 6: Final answer
    x = 7,883.87

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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.