Home / 17,790.80-26,687.70-5,310.02

Finding the Fourth Proportional to 17,790.80, 26,687.70 and 5,310.02

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Solution

The fourth proportional to 17,790.80, 26,687.70 and 5,310.02 is: 7,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,790.80 : 26,687.70 = 5,310.02 : x
  2. Step 2: Convert to fraction form
    17,790.80/26,687.70 = 5,310.02/x
  3. Step 3: Cross multiply
    17,790.80x = 26,687.70 × 5,310.02
  4. Step 4: Simplify right side
    17,790.80x = 141,712,087.32
  5. Step 5: Solve for x
    x = 141,712,087.32/17,790.80
  6. Step 6: Final answer
    x = 7,965.47

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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.