Home / 10,155.75-15,233.52-7,705.62

Finding the Fourth Proportional to 10,155.75, 15,233.52 and 7,705.62

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Solution

The fourth proportional to 10,155.75, 15,233.52 and 7,705.62 is: 11,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.75 : 15,233.52 = 7,705.62 : x
  2. Step 2: Convert to fraction form
    10,155.75/15,233.52 = 7,705.62/x
  3. Step 3: Cross multiply
    10,155.75x = 15,233.52 × 7,705.62
  4. Step 4: Simplify right side
    10,155.75x = 117,383,716.38
  5. Step 5: Solve for x
    x = 117,383,716.38/10,155.75
  6. Step 6: Final answer
    x = 11,558.35

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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.