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Finding the Fourth Proportional to 15,255.99, 22,867.25 and 7,860.87

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Solution

The fourth proportional to 15,255.99, 22,867.25 and 7,860.87 is: 11,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.99 : 22,867.25 = 7,860.87 : x
  2. Step 2: Convert to fraction form
    15,255.99/22,867.25 = 7,860.87/x
  3. Step 3: Cross multiply
    15,255.99x = 22,867.25 × 7,860.87
  4. Step 4: Simplify right side
    15,255.99x = 179,756,440.20
  5. Step 5: Solve for x
    x = 179,756,440.20/15,255.99
  6. Step 6: Final answer
    x = 11,782.68

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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.