Home / 9,979.25-13,771.20-5,503.41

Finding the Fourth Proportional to 9,979.25, 13,771.20 and 5,503.41

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Solution

The fourth proportional to 9,979.25, 13,771.20 and 5,503.41 is: 7,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.25 : 13,771.20 = 5,503.41 : x
  2. Step 2: Convert to fraction form
    9,979.25/13,771.20 = 5,503.41/x
  3. Step 3: Cross multiply
    9,979.25x = 13,771.20 × 5,503.41
  4. Step 4: Simplify right side
    9,979.25x = 75,788,549.47
  5. Step 5: Solve for x
    x = 75,788,549.47/9,979.25
  6. Step 6: Final answer
    x = 7,594.61

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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.