Home / 9,755.39-13,462.40-5,279.15

Finding the Fourth Proportional to 9,755.39, 13,462.40 and 5,279.15

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Solution

The fourth proportional to 9,755.39, 13,462.40 and 5,279.15 is: 7,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,755.39 : 13,462.40 = 5,279.15 : x
  2. Step 2: Convert to fraction form
    9,755.39/13,462.40 = 5,279.15/x
  3. Step 3: Cross multiply
    9,755.39x = 13,462.40 × 5,279.15
  4. Step 4: Simplify right side
    9,755.39x = 71,069,982.11
  5. Step 5: Solve for x
    x = 71,069,982.11/9,755.39
  6. Step 6: Final answer
    x = 7,285.20

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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.