Home / 13,243.10-18,278.06-8,767.04

Finding the Fourth Proportional to 13,243.10, 18,278.06 and 8,767.04

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Solution

The fourth proportional to 13,243.10, 18,278.06 and 8,767.04 is: 12,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.10 : 18,278.06 = 8,767.04 : x
  2. Step 2: Convert to fraction form
    13,243.10/18,278.06 = 8,767.04/x
  3. Step 3: Cross multiply
    13,243.10x = 18,278.06 × 8,767.04
  4. Step 4: Simplify right side
    13,243.10x = 160,244,347.92
  5. Step 5: Solve for x
    x = 160,244,347.92/13,243.10
  6. Step 6: Final answer
    x = 12,100.22

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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.