Home / 13,180.16-18,184.92-7,876.28

Finding the Fourth Proportional to 13,180.16, 18,184.92 and 7,876.28

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Solution

The fourth proportional to 13,180.16, 18,184.92 and 7,876.28 is: 10,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.16 : 18,184.92 = 7,876.28 : x
  2. Step 2: Convert to fraction form
    13,180.16/18,184.92 = 7,876.28/x
  3. Step 3: Cross multiply
    13,180.16x = 18,184.92 × 7,876.28
  4. Step 4: Simplify right side
    13,180.16x = 143,229,521.70
  5. Step 5: Solve for x
    x = 143,229,521.70/13,180.16
  6. Step 6: Final answer
    x = 10,867.05

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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.