Home / 8,155.58-11,266.34-7,565.09

Finding the Fourth Proportional to 8,155.58, 11,266.34 and 7,565.09

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Solution

The fourth proportional to 8,155.58, 11,266.34 and 7,565.09 is: 10,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.58 : 11,266.34 = 7,565.09 : x
  2. Step 2: Convert to fraction form
    8,155.58/11,266.34 = 7,565.09/x
  3. Step 3: Cross multiply
    8,155.58x = 11,266.34 × 7,565.09
  4. Step 4: Simplify right side
    8,155.58x = 85,230,781.91
  5. Step 5: Solve for x
    x = 85,230,781.91/8,155.58
  6. Step 6: Final answer
    x = 10,450.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.