Home / 8,166.30-12,247.86-3,485.40

Finding the Fourth Proportional to 8,166.30, 12,247.86 and 3,485.40

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Solution

The fourth proportional to 8,166.30, 12,247.86 and 3,485.40 is: 5,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.30 : 12,247.86 = 3,485.40 : x
  2. Step 2: Convert to fraction form
    8,166.30/12,247.86 = 3,485.40/x
  3. Step 3: Cross multiply
    8,166.30x = 12,247.86 × 3,485.40
  4. Step 4: Simplify right side
    8,166.30x = 42,688,691.24
  5. Step 5: Solve for x
    x = 42,688,691.24/8,166.30
  6. Step 6: Final answer
    x = 5,227.42

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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.