Home / 12,572.86-17,352.02-7,539.85

Finding the Fourth Proportional to 12,572.86, 17,352.02 and 7,539.85

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Solution

The fourth proportional to 12,572.86, 17,352.02 and 7,539.85 is: 10,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.86 : 17,352.02 = 7,539.85 : x
  2. Step 2: Convert to fraction form
    12,572.86/17,352.02 = 7,539.85/x
  3. Step 3: Cross multiply
    12,572.86x = 17,352.02 × 7,539.85
  4. Step 4: Simplify right side
    12,572.86x = 130,831,705.14
  5. Step 5: Solve for x
    x = 130,831,705.14/12,572.86
  6. Step 6: Final answer
    x = 10,405.88

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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.