Home / 8,190.72-12,283.56-2,345.76

Finding the Fourth Proportional to 8,190.72, 12,283.56 and 2,345.76

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Solution

The fourth proportional to 8,190.72, 12,283.56 and 2,345.76 is: 3,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.72 : 12,283.56 = 2,345.76 : x
  2. Step 2: Convert to fraction form
    8,190.72/12,283.56 = 2,345.76/x
  3. Step 3: Cross multiply
    8,190.72x = 12,283.56 × 2,345.76
  4. Step 4: Simplify right side
    8,190.72x = 28,814,283.71
  5. Step 5: Solve for x
    x = 28,814,283.71/8,190.72
  6. Step 6: Final answer
    x = 3,517.92

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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.