Home / 12,386.28-17,097.75-9,046.38

Finding the Fourth Proportional to 12,386.28, 17,097.75 and 9,046.38

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Solution

The fourth proportional to 12,386.28, 17,097.75 and 9,046.38 is: 12,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.28 : 17,097.75 = 9,046.38 : x
  2. Step 2: Convert to fraction form
    12,386.28/17,097.75 = 9,046.38/x
  3. Step 3: Cross multiply
    12,386.28x = 17,097.75 × 9,046.38
  4. Step 4: Simplify right side
    12,386.28x = 154,672,743.65
  5. Step 5: Solve for x
    x = 154,672,743.65/12,386.28
  6. Step 6: Final answer
    x = 12,487.43

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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.