Home / 8,391.09-12,586.67-2,547.75

Finding the Fourth Proportional to 8,391.09, 12,586.67 and 2,547.75

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Solution

The fourth proportional to 8,391.09, 12,586.67 and 2,547.75 is: 3,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.09 : 12,586.67 = 2,547.75 : x
  2. Step 2: Convert to fraction form
    8,391.09/12,586.67 = 2,547.75/x
  3. Step 3: Cross multiply
    8,391.09x = 12,586.67 × 2,547.75
  4. Step 4: Simplify right side
    8,391.09x = 32,067,688.49
  5. Step 5: Solve for x
    x = 32,067,688.49/8,391.09
  6. Step 6: Final answer
    x = 3,821.64

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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.