Home / 12,425.18-17,141.10-7,386.54

Finding the Fourth Proportional to 12,425.18, 17,141.10 and 7,386.54

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Solution

The fourth proportional to 12,425.18, 17,141.10 and 7,386.54 is: 10,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.18 : 17,141.10 = 7,386.54 : x
  2. Step 2: Convert to fraction form
    12,425.18/17,141.10 = 7,386.54/x
  3. Step 3: Cross multiply
    12,425.18x = 17,141.10 × 7,386.54
  4. Step 4: Simplify right side
    12,425.18x = 126,613,420.79
  5. Step 5: Solve for x
    x = 126,613,420.79/12,425.18
  6. Step 6: Final answer
    x = 10,190.07

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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.