Home / 11,387.65-17,081.40-5,301.19

Finding the Fourth Proportional to 11,387.65, 17,081.40 and 5,301.19

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Solution

The fourth proportional to 11,387.65, 17,081.40 and 5,301.19 is: 7,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.65 : 17,081.40 = 5,301.19 : x
  2. Step 2: Convert to fraction form
    11,387.65/17,081.40 = 5,301.19/x
  3. Step 3: Cross multiply
    11,387.65x = 17,081.40 × 5,301.19
  4. Step 4: Simplify right side
    11,387.65x = 90,551,746.87
  5. Step 5: Solve for x
    x = 90,551,746.87/11,387.65
  6. Step 6: Final answer
    x = 7,951.75

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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.