Home / 10,539.45-15,796.62-4,909.55

Finding the Fourth Proportional to 10,539.45, 15,796.62 and 4,909.55

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Solution

The fourth proportional to 10,539.45, 15,796.62 and 4,909.55 is: 7,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.45 : 15,796.62 = 4,909.55 : x
  2. Step 2: Convert to fraction form
    10,539.45/15,796.62 = 4,909.55/x
  3. Step 3: Cross multiply
    10,539.45x = 15,796.62 × 4,909.55
  4. Step 4: Simplify right side
    10,539.45x = 77,554,216.74
  5. Step 5: Solve for x
    x = 77,554,216.74/10,539.45
  6. Step 6: Final answer
    x = 7,358.47

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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.