Home / 10,517.18-15,786.72-7,746.98

Finding the Fourth Proportional to 10,517.18, 15,786.72 and 7,746.98

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Solution

The fourth proportional to 10,517.18, 15,786.72 and 7,746.98 is: 11,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.18 : 15,786.72 = 7,746.98 : x
  2. Step 2: Convert to fraction form
    10,517.18/15,786.72 = 7,746.98/x
  3. Step 3: Cross multiply
    10,517.18x = 15,786.72 × 7,746.98
  4. Step 4: Simplify right side
    10,517.18x = 122,299,404.11
  5. Step 5: Solve for x
    x = 122,299,404.11/10,517.18
  6. Step 6: Final answer
    x = 11,628.54

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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.