Home / 6,720.18-9,273.98-3,887.61

Finding the Fourth Proportional to 6,720.18, 9,273.98 and 3,887.61

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Solution

The fourth proportional to 6,720.18, 9,273.98 and 3,887.61 is: 5,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.18 : 9,273.98 = 3,887.61 : x
  2. Step 2: Convert to fraction form
    6,720.18/9,273.98 = 3,887.61/x
  3. Step 3: Cross multiply
    6,720.18x = 9,273.98 × 3,887.61
  4. Step 4: Simplify right side
    6,720.18x = 36,053,617.39
  5. Step 5: Solve for x
    x = 36,053,617.39/6,720.18
  6. Step 6: Final answer
    x = 5,364.98

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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.