Home / 10,886.20-15,022.68-6,170.48

Finding the Fourth Proportional to 10,886.20, 15,022.68 and 6,170.48

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Solution

The fourth proportional to 10,886.20, 15,022.68 and 6,170.48 is: 8,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.20 : 15,022.68 = 6,170.48 : x
  2. Step 2: Convert to fraction form
    10,886.20/15,022.68 = 6,170.48/x
  3. Step 3: Cross multiply
    10,886.20x = 15,022.68 × 6,170.48
  4. Step 4: Simplify right side
    10,886.20x = 92,697,146.49
  5. Step 5: Solve for x
    x = 92,697,146.49/10,886.20
  6. Step 6: Final answer
    x = 8,515.11

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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.