Home / 12,385.44-18,556.56-10,318.71

Finding the Fourth Proportional to 12,385.44, 18,556.56 and 10,318.71

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Solution

The fourth proportional to 12,385.44, 18,556.56 and 10,318.71 is: 15,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.44 : 18,556.56 = 10,318.71 : x
  2. Step 2: Convert to fraction form
    12,385.44/18,556.56 = 10,318.71/x
  3. Step 3: Cross multiply
    12,385.44x = 18,556.56 × 10,318.71
  4. Step 4: Simplify right side
    12,385.44x = 191,479,761.24
  5. Step 5: Solve for x
    x = 191,479,761.24/12,385.44
  6. Step 6: Final answer
    x = 15,460.07

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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.