Home / 13,332.80-20,001.60-5,542.40

Finding the Fourth Proportional to 13,332.80, 20,001.60 and 5,542.40

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Solution

The fourth proportional to 13,332.80, 20,001.60 and 5,542.40 is: 8,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.80 : 20,001.60 = 5,542.40 : x
  2. Step 2: Convert to fraction form
    13,332.80/20,001.60 = 5,542.40/x
  3. Step 3: Cross multiply
    13,332.80x = 20,001.60 × 5,542.40
  4. Step 4: Simplify right side
    13,332.80x = 110,856,867.84
  5. Step 5: Solve for x
    x = 110,856,867.84/13,332.80
  6. Step 6: Final answer
    x = 8,314.60

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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.