Home / 11,437.20-17,184.60-7,279.20

Finding the Fourth Proportional to 11,437.20, 17,184.60 and 7,279.20

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Solution

The fourth proportional to 11,437.20, 17,184.60 and 7,279.20 is: 10,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.20 : 17,184.60 = 7,279.20 : x
  2. Step 2: Convert to fraction form
    11,437.20/17,184.60 = 7,279.20/x
  3. Step 3: Cross multiply
    11,437.20x = 17,184.60 × 7,279.20
  4. Step 4: Simplify right side
    11,437.20x = 125,090,140.32
  5. Step 5: Solve for x
    x = 125,090,140.32/11,437.20
  6. Step 6: Final answer
    x = 10,937.13

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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.