Home / 13,351.25-18,424.01-7,382.57

Finding the Fourth Proportional to 13,351.25, 18,424.01 and 7,382.57

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Solution

The fourth proportional to 13,351.25, 18,424.01 and 7,382.57 is: 10,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.25 : 18,424.01 = 7,382.57 : x
  2. Step 2: Convert to fraction form
    13,351.25/18,424.01 = 7,382.57/x
  3. Step 3: Cross multiply
    13,351.25x = 18,424.01 × 7,382.57
  4. Step 4: Simplify right side
    13,351.25x = 136,016,506.59
  5. Step 5: Solve for x
    x = 136,016,506.59/13,351.25
  6. Step 6: Final answer
    x = 10,187.55

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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.