Home / 19,418.38-29,127.57-8,317.87

Finding the Fourth Proportional to 19,418.38, 29,127.57 and 8,317.87

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Solution

The fourth proportional to 19,418.38, 29,127.57 and 8,317.87 is: 12,476.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.38 : 29,127.57 = 8,317.87 : x
  2. Step 2: Convert to fraction form
    19,418.38/29,127.57 = 8,317.87/x
  3. Step 3: Cross multiply
    19,418.38x = 29,127.57 × 8,317.87
  4. Step 4: Simplify right side
    19,418.38x = 242,279,400.51
  5. Step 5: Solve for x
    x = 242,279,400.51/19,418.38
  6. Step 6: Final answer
    x = 12,476.81

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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.