Home / 10,116.64-13,961.88-6,138.76

Finding the Fourth Proportional to 10,116.64, 13,961.88 and 6,138.76

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Solution

The fourth proportional to 10,116.64, 13,961.88 and 6,138.76 is: 8,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.64 : 13,961.88 = 6,138.76 : x
  2. Step 2: Convert to fraction form
    10,116.64/13,961.88 = 6,138.76/x
  3. Step 3: Cross multiply
    10,116.64x = 13,961.88 × 6,138.76
  4. Step 4: Simplify right side
    10,116.64x = 85,708,630.47
  5. Step 5: Solve for x
    x = 85,708,630.47/10,116.64
  6. Step 6: Final answer
    x = 8,472.05

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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.