Home / 12,400.65-17,112.29-7,365.51

Finding the Fourth Proportional to 12,400.65, 17,112.29 and 7,365.51

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Solution

The fourth proportional to 12,400.65, 17,112.29 and 7,365.51 is: 10,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.65 : 17,112.29 = 7,365.51 : x
  2. Step 2: Convert to fraction form
    12,400.65/17,112.29 = 7,365.51/x
  3. Step 3: Cross multiply
    12,400.65x = 17,112.29 × 7,365.51
  4. Step 4: Simplify right side
    12,400.65x = 126,040,706.29
  5. Step 5: Solve for x
    x = 126,040,706.29/12,400.65
  6. Step 6: Final answer
    x = 10,164.04

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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.