Home / 13,393.29-18,482.01-7,424.61

Finding the Fourth Proportional to 13,393.29, 18,482.01 and 7,424.61

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Solution

The fourth proportional to 13,393.29, 18,482.01 and 7,424.61 is: 10,245.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.29 : 18,482.01 = 7,424.61 : x
  2. Step 2: Convert to fraction form
    13,393.29/18,482.01 = 7,424.61/x
  3. Step 3: Cross multiply
    13,393.29x = 18,482.01 × 7,424.61
  4. Step 4: Simplify right side
    13,393.29x = 137,221,716.27
  5. Step 5: Solve for x
    x = 137,221,716.27/13,393.29
  6. Step 6: Final answer
    x = 10,245.56

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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.