Home / 8,818.29-12,167.96-5,280.75

Finding the Fourth Proportional to 8,818.29, 12,167.96 and 5,280.75

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Solution

The fourth proportional to 8,818.29, 12,167.96 and 5,280.75 is: 7,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.29 : 12,167.96 = 5,280.75 : x
  2. Step 2: Convert to fraction form
    8,818.29/12,167.96 = 5,280.75/x
  3. Step 3: Cross multiply
    8,818.29x = 12,167.96 × 5,280.75
  4. Step 4: Simplify right side
    8,818.29x = 64,255,928.37
  5. Step 5: Solve for x
    x = 64,255,928.37/8,818.29
  6. Step 6: Final answer
    x = 7,286.67

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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.