Home / 12,426.45-17,145.68-9,071.10

Finding the Fourth Proportional to 12,426.45, 17,145.68 and 9,071.10

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Solution

The fourth proportional to 12,426.45, 17,145.68 and 9,071.10 is: 12,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.45 : 17,145.68 = 9,071.10 : x
  2. Step 2: Convert to fraction form
    12,426.45/17,145.68 = 9,071.10/x
  3. Step 3: Cross multiply
    12,426.45x = 17,145.68 × 9,071.10
  4. Step 4: Simplify right side
    12,426.45x = 155,530,177.85
  5. Step 5: Solve for x
    x = 155,530,177.85/12,426.45
  6. Step 6: Final answer
    x = 12,516.06

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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.