Home / 10,882.13-15,018.75-6,406.29

Finding the Fourth Proportional to 10,882.13, 15,018.75 and 6,406.29

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Solution

The fourth proportional to 10,882.13, 15,018.75 and 6,406.29 is: 8,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,882.13 : 15,018.75 = 6,406.29 : x
  2. Step 2: Convert to fraction form
    10,882.13/15,018.75 = 6,406.29/x
  3. Step 3: Cross multiply
    10,882.13x = 15,018.75 × 6,406.29
  4. Step 4: Simplify right side
    10,882.13x = 96,214,467.94
  5. Step 5: Solve for x
    x = 96,214,467.94/10,882.13
  6. Step 6: Final answer
    x = 8,841.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.