Home / 13,449.35-18,559.85-7,480.89

Finding the Fourth Proportional to 13,449.35, 18,559.85 and 7,480.89

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Solution

The fourth proportional to 13,449.35, 18,559.85 and 7,480.89 is: 10,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.35 : 18,559.85 = 7,480.89 : x
  2. Step 2: Convert to fraction form
    13,449.35/18,559.85 = 7,480.89/x
  3. Step 3: Cross multiply
    13,449.35x = 18,559.85 × 7,480.89
  4. Step 4: Simplify right side
    13,449.35x = 138,844,158.86
  5. Step 5: Solve for x
    x = 138,844,158.86/13,449.35
  6. Step 6: Final answer
    x = 10,323.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.