Home / 13,306.26-18,363.88-7,641.76

Finding the Fourth Proportional to 13,306.26, 18,363.88 and 7,641.76

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Solution

The fourth proportional to 13,306.26, 18,363.88 and 7,641.76 is: 10,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.26 : 18,363.88 = 7,641.76 : x
  2. Step 2: Convert to fraction form
    13,306.26/18,363.88 = 7,641.76/x
  3. Step 3: Cross multiply
    13,306.26x = 18,363.88 × 7,641.76
  4. Step 4: Simplify right side
    13,306.26x = 140,332,363.63
  5. Step 5: Solve for x
    x = 140,332,363.63/13,306.26
  6. Step 6: Final answer
    x = 10,546.34

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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.