Home / 13,275.15-18,319.72-7,306.82

Finding the Fourth Proportional to 13,275.15, 18,319.72 and 7,306.82

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Solution

The fourth proportional to 13,275.15, 18,319.72 and 7,306.82 is: 10,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.15 : 18,319.72 = 7,306.82 : x
  2. Step 2: Convert to fraction form
    13,275.15/18,319.72 = 7,306.82/x
  3. Step 3: Cross multiply
    13,275.15x = 18,319.72 × 7,306.82
  4. Step 4: Simplify right side
    13,275.15x = 133,858,896.49
  5. Step 5: Solve for x
    x = 133,858,896.49/13,275.15
  6. Step 6: Final answer
    x = 10,083.42

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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.