Home / 8,396.40-12,595.68-5,111.04

Finding the Fourth Proportional to 8,396.40, 12,595.68 and 5,111.04

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Solution

The fourth proportional to 8,396.40, 12,595.68 and 5,111.04 is: 7,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.40 : 12,595.68 = 5,111.04 : x
  2. Step 2: Convert to fraction form
    8,396.40/12,595.68 = 5,111.04/x
  3. Step 3: Cross multiply
    8,396.40x = 12,595.68 × 5,111.04
  4. Step 4: Simplify right side
    8,396.40x = 64,377,024.31
  5. Step 5: Solve for x
    x = 64,377,024.31/8,396.40
  6. Step 6: Final answer
    x = 7,667.22

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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.