Home / 13,320.54-18,382.42-7,352.22

Finding the Fourth Proportional to 13,320.54, 18,382.42 and 7,352.22

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Solution

The fourth proportional to 13,320.54, 18,382.42 and 7,352.22 is: 10,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.54 : 18,382.42 = 7,352.22 : x
  2. Step 2: Convert to fraction form
    13,320.54/18,382.42 = 7,352.22/x
  3. Step 3: Cross multiply
    13,320.54x = 18,382.42 × 7,352.22
  4. Step 4: Simplify right side
    13,320.54x = 135,151,595.97
  5. Step 5: Solve for x
    x = 135,151,595.97/13,320.54
  6. Step 6: Final answer
    x = 10,146.10

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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.