Home / 8,471.19-12,708.55-2,547.84

Finding the Fourth Proportional to 8,471.19, 12,708.55 and 2,547.84

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Solution

The fourth proportional to 8,471.19, 12,708.55 and 2,547.84 is: 3,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.19 : 12,708.55 = 2,547.84 : x
  2. Step 2: Convert to fraction form
    8,471.19/12,708.55 = 2,547.84/x
  3. Step 3: Cross multiply
    8,471.19x = 12,708.55 × 2,547.84
  4. Step 4: Simplify right side
    8,471.19x = 32,379,352.03
  5. Step 5: Solve for x
    x = 32,379,352.03/8,471.19
  6. Step 6: Final answer
    x = 3,822.29

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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.