Home / 10,118.64-13,964.64-6,140.76

Finding the Fourth Proportional to 10,118.64, 13,964.64 and 6,140.76

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Solution

The fourth proportional to 10,118.64, 13,964.64 and 6,140.76 is: 8,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.64 : 13,964.64 = 6,140.76 : x
  2. Step 2: Convert to fraction form
    10,118.64/13,964.64 = 6,140.76/x
  3. Step 3: Cross multiply
    10,118.64x = 13,964.64 × 6,140.76
  4. Step 4: Simplify right side
    10,118.64x = 85,753,502.73
  5. Step 5: Solve for x
    x = 85,753,502.73/10,118.64
  6. Step 6: Final answer
    x = 8,474.81

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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.