Home / 7,780.11-11,666.73-2,232.20

Finding the Fourth Proportional to 7,780.11, 11,666.73 and 2,232.20

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Solution

The fourth proportional to 7,780.11, 11,666.73 and 2,232.20 is: 3,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.11 : 11,666.73 = 2,232.20 : x
  2. Step 2: Convert to fraction form
    7,780.11/11,666.73 = 2,232.20/x
  3. Step 3: Cross multiply
    7,780.11x = 11,666.73 × 2,232.20
  4. Step 4: Simplify right side
    7,780.11x = 26,042,474.71
  5. Step 5: Solve for x
    x = 26,042,474.71/7,780.11
  6. Step 6: Final answer
    x = 3,347.31

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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.