Home / 13,226.22-18,252.24-7,921.02

Finding the Fourth Proportional to 13,226.22, 18,252.24 and 7,921.02

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Solution

The fourth proportional to 13,226.22, 18,252.24 and 7,921.02 is: 10,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.22 : 18,252.24 = 7,921.02 : x
  2. Step 2: Convert to fraction form
    13,226.22/18,252.24 = 7,921.02/x
  3. Step 3: Cross multiply
    13,226.22x = 18,252.24 × 7,921.02
  4. Step 4: Simplify right side
    13,226.22x = 144,576,358.08
  5. Step 5: Solve for x
    x = 144,576,358.08/13,226.22
  6. Step 6: Final answer
    x = 10,931.04

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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.