Home / 13,763.54-18,983.22-9,521.66

Finding the Fourth Proportional to 13,763.54, 18,983.22 and 9,521.66

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Solution

The fourth proportional to 13,763.54, 18,983.22 and 9,521.66 is: 13,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.54 : 18,983.22 = 9,521.66 : x
  2. Step 2: Convert to fraction form
    13,763.54/18,983.22 = 9,521.66/x
  3. Step 3: Cross multiply
    13,763.54x = 18,983.22 × 9,521.66
  4. Step 4: Simplify right side
    13,763.54x = 180,751,766.55
  5. Step 5: Solve for x
    x = 180,751,766.55/13,763.54
  6. Step 6: Final answer
    x = 13,132.65

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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.