Home / 13,275.05-18,320.22-7,306.65

Finding the Fourth Proportional to 13,275.05, 18,320.22 and 7,306.65

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Solution

The fourth proportional to 13,275.05, 18,320.22 and 7,306.65 is: 10,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.05 : 18,320.22 = 7,306.65 : x
  2. Step 2: Convert to fraction form
    13,275.05/18,320.22 = 7,306.65/x
  3. Step 3: Cross multiply
    13,275.05x = 18,320.22 × 7,306.65
  4. Step 4: Simplify right side
    13,275.05x = 133,859,435.46
  5. Step 5: Solve for x
    x = 133,859,435.46/13,275.05
  6. Step 6: Final answer
    x = 10,083.54

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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.