Home / 7,711.37-11,565.23-3,548.78

Finding the Fourth Proportional to 7,711.37, 11,565.23 and 3,548.78

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Solution

The fourth proportional to 7,711.37, 11,565.23 and 3,548.78 is: 5,322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.37 : 11,565.23 = 3,548.78 : x
  2. Step 2: Convert to fraction form
    7,711.37/11,565.23 = 3,548.78/x
  3. Step 3: Cross multiply
    7,711.37x = 11,565.23 × 3,548.78
  4. Step 4: Simplify right side
    7,711.37x = 41,042,381.35
  5. Step 5: Solve for x
    x = 41,042,381.35/7,711.37
  6. Step 6: Final answer
    x = 5,322.32

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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.