Home / 17,387.67-26,081.10-9,986.70

Finding the Fourth Proportional to 17,387.67, 26,081.10 and 9,986.70

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Solution

The fourth proportional to 17,387.67, 26,081.10 and 9,986.70 is: 14,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,387.67 : 26,081.10 = 9,986.70 : x
  2. Step 2: Convert to fraction form
    17,387.67/26,081.10 = 9,986.70/x
  3. Step 3: Cross multiply
    17,387.67x = 26,081.10 × 9,986.70
  4. Step 4: Simplify right side
    17,387.67x = 260,464,121.37
  5. Step 5: Solve for x
    x = 260,464,121.37/17,387.67
  6. Step 6: Final answer
    x = 14,979.82

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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.