Home / 8,639.02-12,960.39-2,795.53

Finding the Fourth Proportional to 8,639.02, 12,960.39 and 2,795.53

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Solution

The fourth proportional to 8,639.02, 12,960.39 and 2,795.53 is: 4,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.02 : 12,960.39 = 2,795.53 : x
  2. Step 2: Convert to fraction form
    8,639.02/12,960.39 = 2,795.53/x
  3. Step 3: Cross multiply
    8,639.02x = 12,960.39 × 2,795.53
  4. Step 4: Simplify right side
    8,639.02x = 36,231,159.06
  5. Step 5: Solve for x
    x = 36,231,159.06/8,639.02
  6. Step 6: Final answer
    x = 4,193.90

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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.