Home / 8,116.39-12,165.10-7,193.75

Finding the Fourth Proportional to 8,116.39, 12,165.10 and 7,193.75

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Solution

The fourth proportional to 8,116.39, 12,165.10 and 7,193.75 is: 10,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.39 : 12,165.10 = 7,193.75 : x
  2. Step 2: Convert to fraction form
    8,116.39/12,165.10 = 7,193.75/x
  3. Step 3: Cross multiply
    8,116.39x = 12,165.10 × 7,193.75
  4. Step 4: Simplify right side
    8,116.39x = 87,512,688.13
  5. Step 5: Solve for x
    x = 87,512,688.13/8,116.39
  6. Step 6: Final answer
    x = 10,782.22

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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.