Home / 7,248.72-9,999.68-4,729.66

Finding the Fourth Proportional to 7,248.72, 9,999.68 and 4,729.66

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Solution

The fourth proportional to 7,248.72, 9,999.68 and 4,729.66 is: 6,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.72 : 9,999.68 = 4,729.66 : x
  2. Step 2: Convert to fraction form
    7,248.72/9,999.68 = 4,729.66/x
  3. Step 3: Cross multiply
    7,248.72x = 9,999.68 × 4,729.66
  4. Step 4: Simplify right side
    7,248.72x = 47,295,086.51
  5. Step 5: Solve for x
    x = 47,295,086.51/7,248.72
  6. Step 6: Final answer
    x = 6,524.61

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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.