Home / 10,742.20-16,113.30-8,150.20

Finding the Fourth Proportional to 10,742.20, 16,113.30 and 8,150.20

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Solution

The fourth proportional to 10,742.20, 16,113.30 and 8,150.20 is: 12,225.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.20 : 16,113.30 = 8,150.20 : x
  2. Step 2: Convert to fraction form
    10,742.20/16,113.30 = 8,150.20/x
  3. Step 3: Cross multiply
    10,742.20x = 16,113.30 × 8,150.20
  4. Step 4: Simplify right side
    10,742.20x = 131,326,617.66
  5. Step 5: Solve for x
    x = 131,326,617.66/10,742.20
  6. Step 6: Final answer
    x = 12,225.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.