Home / 13,015.19-17,948.67-8,542.82

Finding the Fourth Proportional to 13,015.19, 17,948.67 and 8,542.82

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Solution

The fourth proportional to 13,015.19, 17,948.67 and 8,542.82 is: 11,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.19 : 17,948.67 = 8,542.82 : x
  2. Step 2: Convert to fraction form
    13,015.19/17,948.67 = 8,542.82/x
  3. Step 3: Cross multiply
    13,015.19x = 17,948.67 × 8,542.82
  4. Step 4: Simplify right side
    13,015.19x = 153,332,257.05
  5. Step 5: Solve for x
    x = 153,332,257.05/13,015.19
  6. Step 6: Final answer
    x = 11,781.02

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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.