Home / 9,116.65-12,581.49-5,083.57

Finding the Fourth Proportional to 9,116.65, 12,581.49 and 5,083.57

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Solution

The fourth proportional to 9,116.65, 12,581.49 and 5,083.57 is: 7,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.65 : 12,581.49 = 5,083.57 : x
  2. Step 2: Convert to fraction form
    9,116.65/12,581.49 = 5,083.57/x
  3. Step 3: Cross multiply
    9,116.65x = 12,581.49 × 5,083.57
  4. Step 4: Simplify right side
    9,116.65x = 63,958,885.12
  5. Step 5: Solve for x
    x = 63,958,885.12/9,116.65
  6. Step 6: Final answer
    x = 7,015.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.