Home / 13,909.86-20,866.07-4,549.92

Finding the Fourth Proportional to 13,909.86, 20,866.07 and 4,549.92

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Solution

The fourth proportional to 13,909.86, 20,866.07 and 4,549.92 is: 6,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.86 : 20,866.07 = 4,549.92 : x
  2. Step 2: Convert to fraction form
    13,909.86/20,866.07 = 4,549.92/x
  3. Step 3: Cross multiply
    13,909.86x = 20,866.07 × 4,549.92
  4. Step 4: Simplify right side
    13,909.86x = 94,938,926.46
  5. Step 5: Solve for x
    x = 94,938,926.46/13,909.86
  6. Step 6: Final answer
    x = 6,825.30

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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.