Home / 7,766.84-11,639.78-5,570.76

Finding the Fourth Proportional to 7,766.84, 11,639.78 and 5,570.76

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Solution

The fourth proportional to 7,766.84, 11,639.78 and 5,570.76 is: 8,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.84 : 11,639.78 = 5,570.76 : x
  2. Step 2: Convert to fraction form
    7,766.84/11,639.78 = 5,570.76/x
  3. Step 3: Cross multiply
    7,766.84x = 11,639.78 × 5,570.76
  4. Step 4: Simplify right side
    7,766.84x = 64,842,420.83
  5. Step 5: Solve for x
    x = 64,842,420.83/7,766.84
  6. Step 6: Final answer
    x = 8,348.62

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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.