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Finding the Fourth Proportional to 8,756.71, 12,083.78 and 4,777.74

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Solution

The fourth proportional to 8,756.71, 12,083.78 and 4,777.74 is: 6,593.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.71 : 12,083.78 = 4,777.74 : x
  2. Step 2: Convert to fraction form
    8,756.71/12,083.78 = 4,777.74/x
  3. Step 3: Cross multiply
    8,756.71x = 12,083.78 × 4,777.74
  4. Step 4: Simplify right side
    8,756.71x = 57,733,171.00
  5. Step 5: Solve for x
    x = 57,733,171.00/8,756.71
  6. Step 6: Final answer
    x = 6,593.02

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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.