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Finding the Fourth Proportional to 8,993.85, 13,489.92 and 3,150.15

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Solution

The fourth proportional to 8,993.85, 13,489.92 and 3,150.15 is: 4,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.85 : 13,489.92 = 3,150.15 : x
  2. Step 2: Convert to fraction form
    8,993.85/13,489.92 = 3,150.15/x
  3. Step 3: Cross multiply
    8,993.85x = 13,489.92 × 3,150.15
  4. Step 4: Simplify right side
    8,993.85x = 42,495,271.49
  5. Step 5: Solve for x
    x = 42,495,271.49/8,993.85
  6. Step 6: Final answer
    x = 4,724.93

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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.