Home / 18,816.60-28,219.13-13,010.52

Finding the Fourth Proportional to 18,816.60, 28,219.13 and 13,010.52

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Solution

The fourth proportional to 18,816.60, 28,219.13 and 13,010.52 is: 19,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.60 : 28,219.13 = 13,010.52 : x
  2. Step 2: Convert to fraction form
    18,816.60/28,219.13 = 13,010.52/x
  3. Step 3: Cross multiply
    18,816.60x = 28,219.13 × 13,010.52
  4. Step 4: Simplify right side
    18,816.60x = 367,145,555.25
  5. Step 5: Solve for x
    x = 367,145,555.25/18,816.60
  6. Step 6: Final answer
    x = 19,511.79

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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.