Home / 14,517.55-21,776.21-3,987.55

Finding the Fourth Proportional to 14,517.55, 21,776.21 and 3,987.55

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Solution

The fourth proportional to 14,517.55, 21,776.21 and 3,987.55 is: 5,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,517.55 : 21,776.21 = 3,987.55 : x
  2. Step 2: Convert to fraction form
    14,517.55/21,776.21 = 3,987.55/x
  3. Step 3: Cross multiply
    14,517.55x = 21,776.21 × 3,987.55
  4. Step 4: Simplify right side
    14,517.55x = 86,833,726.19
  5. Step 5: Solve for x
    x = 86,833,726.19/14,517.55
  6. Step 6: Final answer
    x = 5,981.29

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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.