Home / 8,189.30-12,283.90-2,345.92

Finding the Fourth Proportional to 8,189.30, 12,283.90 and 2,345.92

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Solution

The fourth proportional to 8,189.30, 12,283.90 and 2,345.92 is: 3,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.30 : 12,283.90 = 2,345.92 : x
  2. Step 2: Convert to fraction form
    8,189.30/12,283.90 = 2,345.92/x
  3. Step 3: Cross multiply
    8,189.30x = 12,283.90 × 2,345.92
  4. Step 4: Simplify right side
    8,189.30x = 28,817,046.69
  5. Step 5: Solve for x
    x = 28,817,046.69/8,189.30
  6. Step 6: Final answer
    x = 3,518.87

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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.