Home / 8,633.90-12,952.28-3,085.76

Finding the Fourth Proportional to 8,633.90, 12,952.28 and 3,085.76

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Solution

The fourth proportional to 8,633.90, 12,952.28 and 3,085.76 is: 4,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.90 : 12,952.28 = 3,085.76 : x
  2. Step 2: Convert to fraction form
    8,633.90/12,952.28 = 3,085.76/x
  3. Step 3: Cross multiply
    8,633.90x = 12,952.28 × 3,085.76
  4. Step 4: Simplify right side
    8,633.90x = 39,967,627.53
  5. Step 5: Solve for x
    x = 39,967,627.53/8,633.90
  6. Step 6: Final answer
    x = 4,629.15

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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.