Home / 18,712.39-28,044.34-7,606.18

Finding the Fourth Proportional to 18,712.39, 28,044.34 and 7,606.18

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Solution

The fourth proportional to 18,712.39, 28,044.34 and 7,606.18 is: 11,399.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.39 : 28,044.34 = 7,606.18 : x
  2. Step 2: Convert to fraction form
    18,712.39/28,044.34 = 7,606.18/x
  3. Step 3: Cross multiply
    18,712.39x = 28,044.34 × 7,606.18
  4. Step 4: Simplify right side
    18,712.39x = 213,310,298.02
  5. Step 5: Solve for x
    x = 213,310,298.02/18,712.39
  6. Step 6: Final answer
    x = 11,399.41

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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.