Home / 8,391.34-12,586.98-2,547.94

Finding the Fourth Proportional to 8,391.34, 12,586.98 and 2,547.94

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Solution

The fourth proportional to 8,391.34, 12,586.98 and 2,547.94 is: 3,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.34 : 12,586.98 = 2,547.94 : x
  2. Step 2: Convert to fraction form
    8,391.34/12,586.98 = 2,547.94/x
  3. Step 3: Cross multiply
    8,391.34x = 12,586.98 × 2,547.94
  4. Step 4: Simplify right side
    8,391.34x = 32,070,869.82
  5. Step 5: Solve for x
    x = 32,070,869.82/8,391.34
  6. Step 6: Final answer
    x = 3,821.90

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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.