Home / 13,347.56-20,024.86-3,987.20

Finding the Fourth Proportional to 13,347.56, 20,024.86 and 3,987.20

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Solution

The fourth proportional to 13,347.56, 20,024.86 and 3,987.20 is: 5,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.56 : 20,024.86 = 3,987.20 : x
  2. Step 2: Convert to fraction form
    13,347.56/20,024.86 = 3,987.20/x
  3. Step 3: Cross multiply
    13,347.56x = 20,024.86 × 3,987.20
  4. Step 4: Simplify right side
    13,347.56x = 79,843,121.79
  5. Step 5: Solve for x
    x = 79,843,121.79/13,347.56
  6. Step 6: Final answer
    x = 5,981.85

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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.