Home / 12,563.20-17,338.60-7,186.13

Finding the Fourth Proportional to 12,563.20, 17,338.60 and 7,186.13

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Solution

The fourth proportional to 12,563.20, 17,338.60 and 7,186.13 is: 9,917.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.20 : 17,338.60 = 7,186.13 : x
  2. Step 2: Convert to fraction form
    12,563.20/17,338.60 = 7,186.13/x
  3. Step 3: Cross multiply
    12,563.20x = 17,338.60 × 7,186.13
  4. Step 4: Simplify right side
    12,563.20x = 124,597,498.25
  5. Step 5: Solve for x
    x = 124,597,498.25/12,563.20
  6. Step 6: Final answer
    x = 9,917.66

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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.