Home / 13,347.80-20,024.56-3,988.58

Finding the Fourth Proportional to 13,347.80, 20,024.56 and 3,988.58

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Solution

The fourth proportional to 13,347.80, 20,024.56 and 3,988.58 is: 5,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.80 : 20,024.56 = 3,988.58 : x
  2. Step 2: Convert to fraction form
    13,347.80/20,024.56 = 3,988.58/x
  3. Step 3: Cross multiply
    13,347.80x = 20,024.56 × 3,988.58
  4. Step 4: Simplify right side
    13,347.80x = 79,869,559.52
  5. Step 5: Solve for x
    x = 79,869,559.52/13,347.80
  6. Step 6: Final answer
    x = 5,983.72

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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.