Home / 7,723.40-11,557.42-6,686.98

Finding the Fourth Proportional to 7,723.40, 11,557.42 and 6,686.98

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Solution

The fourth proportional to 7,723.40, 11,557.42 and 6,686.98 is: 10,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.40 : 11,557.42 = 6,686.98 : x
  2. Step 2: Convert to fraction form
    7,723.40/11,557.42 = 6,686.98/x
  3. Step 3: Cross multiply
    7,723.40x = 11,557.42 × 6,686.98
  4. Step 4: Simplify right side
    7,723.40x = 77,284,190.78
  5. Step 5: Solve for x
    x = 77,284,190.78/7,723.40
  6. Step 6: Final answer
    x = 10,006.50

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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.