Home / 13,306.73-18,364.12-7,338.39

Finding the Fourth Proportional to 13,306.73, 18,364.12 and 7,338.39

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Solution

The fourth proportional to 13,306.73, 18,364.12 and 7,338.39 is: 10,127.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.73 : 18,364.12 = 7,338.39 : x
  2. Step 2: Convert to fraction form
    13,306.73/18,364.12 = 7,338.39/x
  3. Step 3: Cross multiply
    13,306.73x = 18,364.12 × 7,338.39
  4. Step 4: Simplify right side
    13,306.73x = 134,763,074.57
  5. Step 5: Solve for x
    x = 134,763,074.57/13,306.73
  6. Step 6: Final answer
    x = 10,127.44

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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.