Home / 9,984.12-13,778.19-5,507.83

Finding the Fourth Proportional to 9,984.12, 13,778.19 and 5,507.83

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Solution

The fourth proportional to 9,984.12, 13,778.19 and 5,507.83 is: 7,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,984.12 : 13,778.19 = 5,507.83 : x
  2. Step 2: Convert to fraction form
    9,984.12/13,778.19 = 5,507.83/x
  3. Step 3: Cross multiply
    9,984.12x = 13,778.19 × 5,507.83
  4. Step 4: Simplify right side
    9,984.12x = 75,887,831.80
  5. Step 5: Solve for x
    x = 75,887,831.80/9,984.12
  6. Step 6: Final answer
    x = 7,600.86

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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.