Home / 7,724.43-11,587.12-2,178.26

Finding the Fourth Proportional to 7,724.43, 11,587.12 and 2,178.26

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Solution

The fourth proportional to 7,724.43, 11,587.12 and 2,178.26 is: 3,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.43 : 11,587.12 = 2,178.26 : x
  2. Step 2: Convert to fraction form
    7,724.43/11,587.12 = 2,178.26/x
  3. Step 3: Cross multiply
    7,724.43x = 11,587.12 × 2,178.26
  4. Step 4: Simplify right side
    7,724.43x = 25,239,740.08
  5. Step 5: Solve for x
    x = 25,239,740.08/7,724.43
  6. Step 6: Final answer
    x = 3,267.52

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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.