Home / 18,712.91-28,066.17-6,231.51

Finding the Fourth Proportional to 18,712.91, 28,066.17 and 6,231.51

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Solution

The fourth proportional to 18,712.91, 28,066.17 and 6,231.51 is: 9,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.91 : 28,066.17 = 6,231.51 : x
  2. Step 2: Convert to fraction form
    18,712.91/28,066.17 = 6,231.51/x
  3. Step 3: Cross multiply
    18,712.91x = 28,066.17 × 6,231.51
  4. Step 4: Simplify right side
    18,712.91x = 174,894,619.02
  5. Step 5: Solve for x
    x = 174,894,619.02/18,712.91
  6. Step 6: Final answer
    x = 9,346.20

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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.