Home / 15,150.24-20,881.80-11,605.68

Finding the Fourth Proportional to 15,150.24, 20,881.80 and 11,605.68

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Solution

The fourth proportional to 15,150.24, 20,881.80 and 11,605.68 is: 15,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.24 : 20,881.80 = 11,605.68 : x
  2. Step 2: Convert to fraction form
    15,150.24/20,881.80 = 11,605.68/x
  3. Step 3: Cross multiply
    15,150.24x = 20,881.80 × 11,605.68
  4. Step 4: Simplify right side
    15,150.24x = 242,347,488.62
  5. Step 5: Solve for x
    x = 242,347,488.62/15,150.24
  6. Step 6: Final answer
    x = 15,996.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.