Home / 9,117.10-13,675.65-2,879.02

Finding the Fourth Proportional to 9,117.10, 13,675.65 and 2,879.02

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Solution

The fourth proportional to 9,117.10, 13,675.65 and 2,879.02 is: 4,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.10 : 13,675.65 = 2,879.02 : x
  2. Step 2: Convert to fraction form
    9,117.10/13,675.65 = 2,879.02/x
  3. Step 3: Cross multiply
    9,117.10x = 13,675.65 × 2,879.02
  4. Step 4: Simplify right side
    9,117.10x = 39,372,469.86
  5. Step 5: Solve for x
    x = 39,372,469.86/9,117.10
  6. Step 6: Final answer
    x = 4,318.53

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Similar ratio
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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.