Home / 15,538.38-21,443.38-8,465.26

Finding the Fourth Proportional to 15,538.38, 21,443.38 and 8,465.26

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Solution

The fourth proportional to 15,538.38, 21,443.38 and 8,465.26 is: 11,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.38 : 21,443.38 = 8,465.26 : x
  2. Step 2: Convert to fraction form
    15,538.38/21,443.38 = 8,465.26/x
  3. Step 3: Cross multiply
    15,538.38x = 21,443.38 × 8,465.26
  4. Step 4: Simplify right side
    15,538.38x = 181,523,786.98
  5. Step 5: Solve for x
    x = 181,523,786.98/15,538.38
  6. Step 6: Final answer
    x = 11,682.29

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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.