Home / 8,818.28-12,173.08-5,280.84

Finding the Fourth Proportional to 8,818.28, 12,173.08 and 5,280.84

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Solution

The fourth proportional to 8,818.28, 12,173.08 and 5,280.84 is: 7,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.28 : 12,173.08 = 5,280.84 : x
  2. Step 2: Convert to fraction form
    8,818.28/12,173.08 = 5,280.84/x
  3. Step 3: Cross multiply
    8,818.28x = 12,173.08 × 5,280.84
  4. Step 4: Simplify right side
    8,818.28x = 64,284,087.79
  5. Step 5: Solve for x
    x = 64,284,087.79/8,818.28
  6. Step 6: Final answer
    x = 7,289.87

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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.