Home / 10,174.31-15,330.79-8,365.94

Finding the Fourth Proportional to 10,174.31, 15,330.79 and 8,365.94

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Solution

The fourth proportional to 10,174.31, 15,330.79 and 8,365.94 is: 12,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,174.31 : 15,330.79 = 8,365.94 : x
  2. Step 2: Convert to fraction form
    10,174.31/15,330.79 = 8,365.94/x
  3. Step 3: Cross multiply
    10,174.31x = 15,330.79 × 8,365.94
  4. Step 4: Simplify right side
    10,174.31x = 128,256,418.78
  5. Step 5: Solve for x
    x = 128,256,418.78/10,174.31
  6. Step 6: Final answer
    x = 12,605.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.