Home / 15,255.54-22,772.81-13,188.83

Finding the Fourth Proportional to 15,255.54, 22,772.81 and 13,188.83

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Solution

The fourth proportional to 15,255.54, 22,772.81 and 13,188.83 is: 19,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.54 : 22,772.81 = 13,188.83 : x
  2. Step 2: Convert to fraction form
    15,255.54/22,772.81 = 13,188.83/x
  3. Step 3: Cross multiply
    15,255.54x = 22,772.81 × 13,188.83
  4. Step 4: Simplify right side
    15,255.54x = 300,346,638.82
  5. Step 5: Solve for x
    x = 300,346,638.82/15,255.54
  6. Step 6: Final answer
    x = 19,687.71

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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.