Home / 8,165.17-12,247.75-5,409.35

Finding the Fourth Proportional to 8,165.17, 12,247.75 and 5,409.35

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Solution

The fourth proportional to 8,165.17, 12,247.75 and 5,409.35 is: 8,114.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.17 : 12,247.75 = 5,409.35 : x
  2. Step 2: Convert to fraction form
    8,165.17/12,247.75 = 5,409.35/x
  3. Step 3: Cross multiply
    8,165.17x = 12,247.75 × 5,409.35
  4. Step 4: Simplify right side
    8,165.17x = 66,252,366.46
  5. Step 5: Solve for x
    x = 66,252,366.46/8,165.17
  6. Step 6: Final answer
    x = 8,114.02

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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.