Home / 7,726.80-11,562.46-6,690.34

Finding the Fourth Proportional to 7,726.80, 11,562.46 and 6,690.34

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Solution

The fourth proportional to 7,726.80, 11,562.46 and 6,690.34 is: 10,011.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.80 : 11,562.46 = 6,690.34 : x
  2. Step 2: Convert to fraction form
    7,726.80/11,562.46 = 6,690.34/x
  3. Step 3: Cross multiply
    7,726.80x = 11,562.46 × 6,690.34
  4. Step 4: Simplify right side
    7,726.80x = 77,356,743.00
  5. Step 5: Solve for x
    x = 77,356,743.00/7,726.80
  6. Step 6: Final answer
    x = 10,011.49

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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.