Home / 13,555.80-20,333.10-3,695.08

Finding the Fourth Proportional to 13,555.80, 20,333.10 and 3,695.08

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Solution

The fourth proportional to 13,555.80, 20,333.10 and 3,695.08 is: 5,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.80 : 20,333.10 = 3,695.08 : x
  2. Step 2: Convert to fraction form
    13,555.80/20,333.10 = 3,695.08/x
  3. Step 3: Cross multiply
    13,555.80x = 20,333.10 × 3,695.08
  4. Step 4: Simplify right side
    13,555.80x = 75,132,380.32
  5. Step 5: Solve for x
    x = 75,132,380.32/13,555.80
  6. Step 6: Final answer
    x = 5,542.45

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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.