Home / 18,378.22-27,545.45-10,570.63

Finding the Fourth Proportional to 18,378.22, 27,545.45 and 10,570.63

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Solution

The fourth proportional to 18,378.22, 27,545.45 and 10,570.63 is: 15,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.22 : 27,545.45 = 10,570.63 : x
  2. Step 2: Convert to fraction form
    18,378.22/27,545.45 = 10,570.63/x
  3. Step 3: Cross multiply
    18,378.22x = 27,545.45 × 10,570.63
  4. Step 4: Simplify right side
    18,378.22x = 291,172,760.13
  5. Step 5: Solve for x
    x = 291,172,760.13/18,378.22
  6. Step 6: Final answer
    x = 15,843.36

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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.