Home / 7,821.84-10,795.50-4,679.76

Finding the Fourth Proportional to 7,821.84, 10,795.50 and 4,679.76

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Solution

The fourth proportional to 7,821.84, 10,795.50 and 4,679.76 is: 6,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.84 : 10,795.50 = 4,679.76 : x
  2. Step 2: Convert to fraction form
    7,821.84/10,795.50 = 4,679.76/x
  3. Step 3: Cross multiply
    7,821.84x = 10,795.50 × 4,679.76
  4. Step 4: Simplify right side
    7,821.84x = 50,520,349.08
  5. Step 5: Solve for x
    x = 50,520,349.08/7,821.84
  6. Step 6: Final answer
    x = 6,458.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.