Home / 11,386.90-17,080.35-10,081.30

Finding the Fourth Proportional to 11,386.90, 17,080.35 and 10,081.30

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Solution

The fourth proportional to 11,386.90, 17,080.35 and 10,081.30 is: 15,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.90 : 17,080.35 = 10,081.30 : x
  2. Step 2: Convert to fraction form
    11,386.90/17,080.35 = 10,081.30/x
  3. Step 3: Cross multiply
    11,386.90x = 17,080.35 × 10,081.30
  4. Step 4: Simplify right side
    11,386.90x = 172,192,132.46
  5. Step 5: Solve for x
    x = 172,192,132.46/11,386.90
  6. Step 6: Final answer
    x = 15,121.95

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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.