Home / 10,781.30-14,876.26-6,181.72

Finding the Fourth Proportional to 10,781.30, 14,876.26 and 6,181.72

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Solution

The fourth proportional to 10,781.30, 14,876.26 and 6,181.72 is: 8,529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.30 : 14,876.26 = 6,181.72 : x
  2. Step 2: Convert to fraction form
    10,781.30/14,876.26 = 6,181.72/x
  3. Step 3: Cross multiply
    10,781.30x = 14,876.26 × 6,181.72
  4. Step 4: Simplify right side
    10,781.30x = 91,960,821.32
  5. Step 5: Solve for x
    x = 91,960,821.32/10,781.30
  6. Step 6: Final answer
    x = 8,529.66

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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.