Home / 19,965.12-29,947.68-6,114.24

Finding the Fourth Proportional to 19,965.12, 29,947.68 and 6,114.24

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Solution

The fourth proportional to 19,965.12, 29,947.68 and 6,114.24 is: 9,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.12 : 29,947.68 = 6,114.24 : x
  2. Step 2: Convert to fraction form
    19,965.12/29,947.68 = 6,114.24/x
  3. Step 3: Cross multiply
    19,965.12x = 29,947.68 × 6,114.24
  4. Step 4: Simplify right side
    19,965.12x = 183,107,302.96
  5. Step 5: Solve for x
    x = 183,107,302.96/19,965.12
  6. Step 6: Final answer
    x = 9,171.36

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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.