Home / 9,958.21-13,737.71-6,422.56

Finding the Fourth Proportional to 9,958.21, 13,737.71 and 6,422.56

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Solution

The fourth proportional to 9,958.21, 13,737.71 and 6,422.56 is: 8,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958.21 : 13,737.71 = 6,422.56 : x
  2. Step 2: Convert to fraction form
    9,958.21/13,737.71 = 6,422.56/x
  3. Step 3: Cross multiply
    9,958.21x = 13,737.71 × 6,422.56
  4. Step 4: Simplify right side
    9,958.21x = 88,231,248.45
  5. Step 5: Solve for x
    x = 88,231,248.45/9,958.21
  6. Step 6: Final answer
    x = 8,860.15

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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.