Home / 15,786.88-23,679.80-6,424.12

Finding the Fourth Proportional to 15,786.88, 23,679.80 and 6,424.12

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Solution

The fourth proportional to 15,786.88, 23,679.80 and 6,424.12 is: 9,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.88 : 23,679.80 = 6,424.12 : x
  2. Step 2: Convert to fraction form
    15,786.88/23,679.80 = 6,424.12/x
  3. Step 3: Cross multiply
    15,786.88x = 23,679.80 × 6,424.12
  4. Step 4: Simplify right side
    15,786.88x = 152,121,876.78
  5. Step 5: Solve for x
    x = 152,121,876.78/15,786.88
  6. Step 6: Final answer
    x = 9,635.97

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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.