Home / 13,449.20-20,175.60-4,686.80

Finding the Fourth Proportional to 13,449.20, 20,175.60 and 4,686.80

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Solution

The fourth proportional to 13,449.20, 20,175.60 and 4,686.80 is: 7,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.20 : 20,175.60 = 4,686.80 : x
  2. Step 2: Convert to fraction form
    13,449.20/20,175.60 = 4,686.80/x
  3. Step 3: Cross multiply
    13,449.20x = 20,175.60 × 4,686.80
  4. Step 4: Simplify right side
    13,449.20x = 94,559,002.08
  5. Step 5: Solve for x
    x = 94,559,002.08/13,449.20
  6. Step 6: Final answer
    x = 7,030.83

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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.