Home / 8,135.34-11,229.40-4,778.07

Finding the Fourth Proportional to 8,135.34, 11,229.40 and 4,778.07

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Solution

The fourth proportional to 8,135.34, 11,229.40 and 4,778.07 is: 6,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.34 : 11,229.40 = 4,778.07 : x
  2. Step 2: Convert to fraction form
    8,135.34/11,229.40 = 4,778.07/x
  3. Step 3: Cross multiply
    8,135.34x = 11,229.40 × 4,778.07
  4. Step 4: Simplify right side
    8,135.34x = 53,654,859.26
  5. Step 5: Solve for x
    x = 53,654,859.26/8,135.34
  6. Step 6: Final answer
    x = 6,595.28

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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.