Home / 10,879.46-15,041.10-8,042.36

Finding the Fourth Proportional to 10,879.46, 15,041.10 and 8,042.36

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Solution

The fourth proportional to 10,879.46, 15,041.10 and 8,042.36 is: 11,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.46 : 15,041.10 = 8,042.36 : x
  2. Step 2: Convert to fraction form
    10,879.46/15,041.10 = 8,042.36/x
  3. Step 3: Cross multiply
    10,879.46x = 15,041.10 × 8,042.36
  4. Step 4: Simplify right side
    10,879.46x = 120,965,941.00
  5. Step 5: Solve for x
    x = 120,965,941.00/10,879.46
  6. Step 6: Final answer
    x = 11,118.74

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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.