Home / 10,318.84-15,454.78-8,083.72

Finding the Fourth Proportional to 10,318.84, 15,454.78 and 8,083.72

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Solution

The fourth proportional to 10,318.84, 15,454.78 and 8,083.72 is: 12,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.84 : 15,454.78 = 8,083.72 : x
  2. Step 2: Convert to fraction form
    10,318.84/15,454.78 = 8,083.72/x
  3. Step 3: Cross multiply
    10,318.84x = 15,454.78 × 8,083.72
  4. Step 4: Simplify right side
    10,318.84x = 124,932,114.18
  5. Step 5: Solve for x
    x = 124,932,114.18/10,318.84
  6. Step 6: Final answer
    x = 12,107.19

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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.