Home / 17,186.20-25,779.30-13,298.20

Finding the Fourth Proportional to 17,186.20, 25,779.30 and 13,298.20

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Solution

The fourth proportional to 17,186.20, 25,779.30 and 13,298.20 is: 19,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,186.20 : 25,779.30 = 13,298.20 : x
  2. Step 2: Convert to fraction form
    17,186.20/25,779.30 = 13,298.20/x
  3. Step 3: Cross multiply
    17,186.20x = 25,779.30 × 13,298.20
  4. Step 4: Simplify right side
    17,186.20x = 342,818,287.26
  5. Step 5: Solve for x
    x = 342,818,287.26/17,186.20
  6. Step 6: Final answer
    x = 19,947.30

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Double scale
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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.