Home / 14,218.96-21,331.14-6,427.75

Finding the Fourth Proportional to 14,218.96, 21,331.14 and 6,427.75

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Solution

The fourth proportional to 14,218.96, 21,331.14 and 6,427.75 is: 9,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.96 : 21,331.14 = 6,427.75 : x
  2. Step 2: Convert to fraction form
    14,218.96/21,331.14 = 6,427.75/x
  3. Step 3: Cross multiply
    14,218.96x = 21,331.14 × 6,427.75
  4. Step 4: Simplify right side
    14,218.96x = 137,111,235.14
  5. Step 5: Solve for x
    x = 137,111,235.14/14,218.96
  6. Step 6: Final answer
    x = 9,642.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.