Home / 8,391.19-12,585.97-2,547.85

Finding the Fourth Proportional to 8,391.19, 12,585.97 and 2,547.85

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Solution

The fourth proportional to 8,391.19, 12,585.97 and 2,547.85 is: 3,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.19 : 12,585.97 = 2,547.85 : x
  2. Step 2: Convert to fraction form
    8,391.19/12,585.97 = 2,547.85/x
  3. Step 3: Cross multiply
    8,391.19x = 12,585.97 × 2,547.85
  4. Step 4: Simplify right side
    8,391.19x = 32,067,088.00
  5. Step 5: Solve for x
    x = 32,067,088.00/8,391.19
  6. Step 6: Final answer
    x = 3,821.52

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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.