Home / 13,210.52-18,229.60-7,832.68

Finding the Fourth Proportional to 13,210.52, 18,229.60 and 7,832.68

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Solution

The fourth proportional to 13,210.52, 18,229.60 and 7,832.68 is: 10,808.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.52 : 18,229.60 = 7,832.68 : x
  2. Step 2: Convert to fraction form
    13,210.52/18,229.60 = 7,832.68/x
  3. Step 3: Cross multiply
    13,210.52x = 18,229.60 × 7,832.68
  4. Step 4: Simplify right side
    13,210.52x = 142,786,587.54
  5. Step 5: Solve for x
    x = 142,786,587.54/13,210.52
  6. Step 6: Final answer
    x = 10,808.56

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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.