Home / 9,982.11-13,773.59-6,400.20

Finding the Fourth Proportional to 9,982.11, 13,773.59 and 6,400.20

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Solution

The fourth proportional to 9,982.11, 13,773.59 and 6,400.20 is: 8,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.11 : 13,773.59 = 6,400.20 : x
  2. Step 2: Convert to fraction form
    9,982.11/13,773.59 = 6,400.20/x
  3. Step 3: Cross multiply
    9,982.11x = 13,773.59 × 6,400.20
  4. Step 4: Simplify right side
    9,982.11x = 88,153,680.28
  5. Step 5: Solve for x
    x = 88,153,680.28/9,982.11
  6. Step 6: Final answer
    x = 8,831.17

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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.