Home / 19,338.92-26,678.22-12,621.44

Finding the Fourth Proportional to 19,338.92, 26,678.22 and 12,621.44

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Solution

The fourth proportional to 19,338.92, 26,678.22 and 12,621.44 is: 17,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.92 : 26,678.22 = 12,621.44 : x
  2. Step 2: Convert to fraction form
    19,338.92/26,678.22 = 12,621.44/x
  3. Step 3: Cross multiply
    19,338.92x = 26,678.22 × 12,621.44
  4. Step 4: Simplify right side
    19,338.92x = 336,717,553.04
  5. Step 5: Solve for x
    x = 336,717,553.04/19,338.92
  6. Step 6: Final answer
    x = 17,411.39

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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.