Home / 17,638.75-26,458.13-5,326.75

Finding the Fourth Proportional to 17,638.75, 26,458.13 and 5,326.75

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Solution

The fourth proportional to 17,638.75, 26,458.13 and 5,326.75 is: 7,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.75 : 26,458.13 = 5,326.75 : x
  2. Step 2: Convert to fraction form
    17,638.75/26,458.13 = 5,326.75/x
  3. Step 3: Cross multiply
    17,638.75x = 26,458.13 × 5,326.75
  4. Step 4: Simplify right side
    17,638.75x = 140,935,817.34
  5. Step 5: Solve for x
    x = 140,935,817.34/17,638.75
  6. Step 6: Final answer
    x = 7,990.13

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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.