Home / 10,883.80-15,019.68-6,168.40

Finding the Fourth Proportional to 10,883.80, 15,019.68 and 6,168.40

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Solution

The fourth proportional to 10,883.80, 15,019.68 and 6,168.40 is: 8,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,883.80 : 15,019.68 = 6,168.40 : x
  2. Step 2: Convert to fraction form
    10,883.80/15,019.68 = 6,168.40/x
  3. Step 3: Cross multiply
    10,883.80x = 15,019.68 × 6,168.40
  4. Step 4: Simplify right side
    10,883.80x = 92,647,394.11
  5. Step 5: Solve for x
    x = 92,647,394.11/10,883.80
  6. Step 6: Final answer
    x = 8,512.41

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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.