Home / 7,711.50-11,566.39-2,165.06

Finding the Fourth Proportional to 7,711.50, 11,566.39 and 2,165.06

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Solution

The fourth proportional to 7,711.50, 11,566.39 and 2,165.06 is: 3,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.50 : 11,566.39 = 2,165.06 : x
  2. Step 2: Convert to fraction form
    7,711.50/11,566.39 = 2,165.06/x
  3. Step 3: Cross multiply
    7,711.50x = 11,566.39 × 2,165.06
  4. Step 4: Simplify right side
    7,711.50x = 25,041,928.33
  5. Step 5: Solve for x
    x = 25,041,928.33/7,711.50
  6. Step 6: Final answer
    x = 3,247.35

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Double scale
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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.