Home / 15,817.88-23,729.75-5,286.89

Finding the Fourth Proportional to 15,817.88, 23,729.75 and 5,286.89

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Solution

The fourth proportional to 15,817.88, 23,729.75 and 5,286.89 is: 7,931.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.88 : 23,729.75 = 5,286.89 : x
  2. Step 2: Convert to fraction form
    15,817.88/23,729.75 = 5,286.89/x
  3. Step 3: Cross multiply
    15,817.88x = 23,729.75 × 5,286.89
  4. Step 4: Simplify right side
    15,817.88x = 125,456,630.69
  5. Step 5: Solve for x
    x = 125,456,630.69/15,817.88
  6. Step 6: Final answer
    x = 7,931.32

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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.