Home / 7,821.41-11,724.21-4,901.76

Finding the Fourth Proportional to 7,821.41, 11,724.21 and 4,901.76

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Solution

The fourth proportional to 7,821.41, 11,724.21 and 4,901.76 is: 7,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.41 : 11,724.21 = 4,901.76 : x
  2. Step 2: Convert to fraction form
    7,821.41/11,724.21 = 4,901.76/x
  3. Step 3: Cross multiply
    7,821.41x = 11,724.21 × 4,901.76
  4. Step 4: Simplify right side
    7,821.41x = 57,469,263.61
  5. Step 5: Solve for x
    x = 57,469,263.61/7,821.41
  6. Step 6: Final answer
    x = 7,347.69

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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.