Home / 26,650.13-39,975.39-9,120.11

Finding the Fourth Proportional to 26,650.13, 39,975.39 and 9,120.11

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Solution

The fourth proportional to 26,650.13, 39,975.39 and 9,120.11 is: 13,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,650.13 : 39,975.39 = 9,120.11 : x
  2. Step 2: Convert to fraction form
    26,650.13/39,975.39 = 9,120.11/x
  3. Step 3: Cross multiply
    26,650.13x = 39,975.39 × 9,120.11
  4. Step 4: Simplify right side
    26,650.13x = 364,579,754.22
  5. Step 5: Solve for x
    x = 364,579,754.22/26,650.13
  6. Step 6: Final answer
    x = 13,680.23

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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.