Home / 10,642.11-15,964.58-5,647.04

Finding the Fourth Proportional to 10,642.11, 15,964.58 and 5,647.04

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Solution

The fourth proportional to 10,642.11, 15,964.58 and 5,647.04 is: 8,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.11 : 15,964.58 = 5,647.04 : x
  2. Step 2: Convert to fraction form
    10,642.11/15,964.58 = 5,647.04/x
  3. Step 3: Cross multiply
    10,642.11x = 15,964.58 × 5,647.04
  4. Step 4: Simplify right side
    10,642.11x = 90,152,513.79
  5. Step 5: Solve for x
    x = 90,152,513.79/10,642.11
  6. Step 6: Final answer
    x = 8,471.30

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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.