Home / 10,381.57-15,577.82-4,542.28

Finding the Fourth Proportional to 10,381.57, 15,577.82 and 4,542.28

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Solution

The fourth proportional to 10,381.57, 15,577.82 and 4,542.28 is: 6,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.57 : 15,577.82 = 4,542.28 : x
  2. Step 2: Convert to fraction form
    10,381.57/15,577.82 = 4,542.28/x
  3. Step 3: Cross multiply
    10,381.57x = 15,577.82 × 4,542.28
  4. Step 4: Simplify right side
    10,381.57x = 70,758,719.63
  5. Step 5: Solve for x
    x = 70,758,719.63/10,381.57
  6. Step 6: Final answer
    x = 6,815.80

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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.