Home / 8,247.82-12,370.02-2,911.72

Finding the Fourth Proportional to 8,247.82, 12,370.02 and 2,911.72

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Solution

The fourth proportional to 8,247.82, 12,370.02 and 2,911.72 is: 4,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.82 : 12,370.02 = 2,911.72 : x
  2. Step 2: Convert to fraction form
    8,247.82/12,370.02 = 2,911.72/x
  3. Step 3: Cross multiply
    8,247.82x = 12,370.02 × 2,911.72
  4. Step 4: Simplify right side
    8,247.82x = 36,018,034.63
  5. Step 5: Solve for x
    x = 36,018,034.63/8,247.82
  6. Step 6: Final answer
    x = 4,366.98

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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.