Home / 8,634.02-12,947.85-3,085.85

Finding the Fourth Proportional to 8,634.02, 12,947.85 and 3,085.85

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Solution

The fourth proportional to 8,634.02, 12,947.85 and 3,085.85 is: 4,627.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.02 : 12,947.85 = 3,085.85 : x
  2. Step 2: Convert to fraction form
    8,634.02/12,947.85 = 3,085.85/x
  3. Step 3: Cross multiply
    8,634.02x = 12,947.85 × 3,085.85
  4. Step 4: Simplify right side
    8,634.02x = 39,955,155.29
  5. Step 5: Solve for x
    x = 39,955,155.29/8,634.02
  6. Step 6: Final answer
    x = 4,627.64

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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.