Home / 13,909.80-20,862.54-4,549.74

Finding the Fourth Proportional to 13,909.80, 20,862.54 and 4,549.74

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Solution

The fourth proportional to 13,909.80, 20,862.54 and 4,549.74 is: 6,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.80 : 20,862.54 = 4,549.74 : x
  2. Step 2: Convert to fraction form
    13,909.80/20,862.54 = 4,549.74/x
  3. Step 3: Cross multiply
    13,909.80x = 20,862.54 × 4,549.74
  4. Step 4: Simplify right side
    13,909.80x = 94,919,132.74
  5. Step 5: Solve for x
    x = 94,919,132.74/13,909.80
  6. Step 6: Final answer
    x = 6,823.90

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1.5x scale

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.