Home / 18,439.26-27,656.18-6,749.76

Finding the Fourth Proportional to 18,439.26, 27,656.18 and 6,749.76

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Solution

The fourth proportional to 18,439.26, 27,656.18 and 6,749.76 is: 10,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.26 : 27,656.18 = 6,749.76 : x
  2. Step 2: Convert to fraction form
    18,439.26/27,656.18 = 6,749.76/x
  3. Step 3: Cross multiply
    18,439.26x = 27,656.18 × 6,749.76
  4. Step 4: Simplify right side
    18,439.26x = 186,672,577.52
  5. Step 5: Solve for x
    x = 186,672,577.52/18,439.26
  6. Step 6: Final answer
    x = 10,123.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.