Home / 17,955.75-24,778.94-9,889.84

Finding the Fourth Proportional to 17,955.75, 24,778.94 and 9,889.84

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Solution

The fourth proportional to 17,955.75, 24,778.94 and 9,889.84 is: 13,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.75 : 24,778.94 = 9,889.84 : x
  2. Step 2: Convert to fraction form
    17,955.75/24,778.94 = 9,889.84/x
  3. Step 3: Cross multiply
    17,955.75x = 24,778.94 × 9,889.84
  4. Step 4: Simplify right side
    17,955.75x = 245,059,640.57
  5. Step 5: Solve for x
    x = 245,059,640.57/17,955.75
  6. Step 6: Final answer
    x = 13,647.98

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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.