Home / 7,821.76-10,795.40-4,677.96

Finding the Fourth Proportional to 7,821.76, 10,795.40 and 4,677.96

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Solution

The fourth proportional to 7,821.76, 10,795.40 and 4,677.96 is: 6,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.76 : 10,795.40 = 4,677.96 : x
  2. Step 2: Convert to fraction form
    7,821.76/10,795.40 = 4,677.96/x
  3. Step 3: Cross multiply
    7,821.76x = 10,795.40 × 4,677.96
  4. Step 4: Simplify right side
    7,821.76x = 50,500,449.38
  5. Step 5: Solve for x
    x = 50,500,449.38/7,821.76
  6. Step 6: Final answer
    x = 6,456.40

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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.