Home / 10,879.32-15,013.17-6,165.12

Finding the Fourth Proportional to 10,879.32, 15,013.17 and 6,165.12

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Solution

The fourth proportional to 10,879.32, 15,013.17 and 6,165.12 is: 8,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.32 : 15,013.17 = 6,165.12 : x
  2. Step 2: Convert to fraction form
    10,879.32/15,013.17 = 6,165.12/x
  3. Step 3: Cross multiply
    10,879.32x = 15,013.17 × 6,165.12
  4. Step 4: Simplify right side
    10,879.32x = 92,557,994.63
  5. Step 5: Solve for x
    x = 92,557,994.63/10,879.32
  6. Step 6: Final answer
    x = 8,507.70

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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.