Home / 13,351.03-18,423.19-7,382.58

Finding the Fourth Proportional to 13,351.03, 18,423.19 and 7,382.58

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Solution

The fourth proportional to 13,351.03, 18,423.19 and 7,382.58 is: 10,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.03 : 18,423.19 = 7,382.58 : x
  2. Step 2: Convert to fraction form
    13,351.03/18,423.19 = 7,382.58/x
  3. Step 3: Cross multiply
    13,351.03x = 18,423.19 × 7,382.58
  4. Step 4: Simplify right side
    13,351.03x = 136,010,674.03
  5. Step 5: Solve for x
    x = 136,010,674.03/13,351.03
  6. Step 6: Final answer
    x = 10,187.28

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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.