Home / 7,768.18-11,652.68-2,221.08

Finding the Fourth Proportional to 7,768.18, 11,652.68 and 2,221.08

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Solution

The fourth proportional to 7,768.18, 11,652.68 and 2,221.08 is: 3,331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.18 : 11,652.68 = 2,221.08 : x
  2. Step 2: Convert to fraction form
    7,768.18/11,652.68 = 2,221.08/x
  3. Step 3: Cross multiply
    7,768.18x = 11,652.68 × 2,221.08
  4. Step 4: Simplify right side
    7,768.18x = 25,881,534.49
  5. Step 5: Solve for x
    x = 25,881,534.49/7,768.18
  6. Step 6: Final answer
    x = 3,331.74

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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.