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Finding the Fourth Proportional to 10,572.80, 15,856.11 and 3,552.01

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Solution

The fourth proportional to 10,572.80, 15,856.11 and 3,552.01 is: 5,326.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.80 : 15,856.11 = 3,552.01 : x
  2. Step 2: Convert to fraction form
    10,572.80/15,856.11 = 3,552.01/x
  3. Step 3: Cross multiply
    10,572.80x = 15,856.11 × 3,552.01
  4. Step 4: Simplify right side
    10,572.80x = 56,321,021.64
  5. Step 5: Solve for x
    x = 56,321,021.64/10,572.80
  6. Step 6: Final answer
    x = 5,326.98

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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.