Home / 10,862.32-14,979.18-8,179.96

Finding the Fourth Proportional to 10,862.32, 14,979.18 and 8,179.96

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Solution

The fourth proportional to 10,862.32, 14,979.18 and 8,179.96 is: 11,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.32 : 14,979.18 = 8,179.96 : x
  2. Step 2: Convert to fraction form
    10,862.32/14,979.18 = 8,179.96/x
  3. Step 3: Cross multiply
    10,862.32x = 14,979.18 × 8,179.96
  4. Step 4: Simplify right side
    10,862.32x = 122,529,093.23
  5. Step 5: Solve for x
    x = 122,529,093.23/10,862.32
  6. Step 6: Final answer
    x = 11,280.20

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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.