Home / 7,721.40-11,581.86-4,233.54

Finding the Fourth Proportional to 7,721.40, 11,581.86 and 4,233.54

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Solution

The fourth proportional to 7,721.40, 11,581.86 and 4,233.54 is: 6,350.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.40 : 11,581.86 = 4,233.54 : x
  2. Step 2: Convert to fraction form
    7,721.40/11,581.86 = 4,233.54/x
  3. Step 3: Cross multiply
    7,721.40x = 11,581.86 × 4,233.54
  4. Step 4: Simplify right side
    7,721.40x = 49,032,267.58
  5. Step 5: Solve for x
    x = 49,032,267.58/7,721.40
  6. Step 6: Final answer
    x = 6,350.18

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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.