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Finding the Fourth Proportional to 8,808.28, 12,155.84 and 5,270.84

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Solution

The fourth proportional to 8,808.28, 12,155.84 and 5,270.84 is: 7,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.28 : 12,155.84 = 5,270.84 : x
  2. Step 2: Convert to fraction form
    8,808.28/12,155.84 = 5,270.84/x
  3. Step 3: Cross multiply
    8,808.28x = 12,155.84 × 5,270.84
  4. Step 4: Simplify right side
    8,808.28x = 64,071,487.71
  5. Step 5: Solve for x
    x = 64,071,487.71/8,808.28
  6. Step 6: Final answer
    x = 7,274.01

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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.