Home / 12,626.10-18,917.58-8,921.16

Finding the Fourth Proportional to 12,626.10, 18,917.58 and 8,921.16

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Solution

The fourth proportional to 12,626.10, 18,917.58 and 8,921.16 is: 13,366.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.10 : 18,917.58 = 8,921.16 : x
  2. Step 2: Convert to fraction form
    12,626.10/18,917.58 = 8,921.16/x
  3. Step 3: Cross multiply
    12,626.10x = 18,917.58 × 8,921.16
  4. Step 4: Simplify right side
    12,626.10x = 168,766,757.99
  5. Step 5: Solve for x
    x = 168,766,757.99/12,626.10
  6. Step 6: Final answer
    x = 13,366.50

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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.