Home / 15,275-22,811.86-13,199.24

Finding the Fourth Proportional to 15,275, 22,811.86 and 13,199.24

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Solution

The fourth proportional to 15,275, 22,811.86 and 13,199.24 is: 19,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275 : 22,811.86 = 13,199.24 : x
  2. Step 2: Convert to fraction form
    15,275/22,811.86 = 13,199.24/x
  3. Step 3: Cross multiply
    15,275x = 22,811.86 × 13,199.24
  4. Step 4: Simplify right side
    15,275x = 301,099,214.99
  5. Step 5: Solve for x
    x = 301,099,214.99/15,275
  6. Step 6: Final answer
    x = 19,711.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.