Home / 7,665.10-11,497.66-2,118.28

Finding the Fourth Proportional to 7,665.10, 11,497.66 and 2,118.28

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Solution

The fourth proportional to 7,665.10, 11,497.66 and 2,118.28 is: 3,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.10 : 11,497.66 = 2,118.28 : x
  2. Step 2: Convert to fraction form
    7,665.10/11,497.66 = 2,118.28/x
  3. Step 3: Cross multiply
    7,665.10x = 11,497.66 × 2,118.28
  4. Step 4: Simplify right side
    7,665.10x = 24,355,263.22
  5. Step 5: Solve for x
    x = 24,355,263.22/7,665.10
  6. Step 6: Final answer
    x = 3,177.42

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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.