Home / 18,934.08-26,124.84-12,642

Finding the Fourth Proportional to 18,934.08, 26,124.84 and 12,642

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Solution

The fourth proportional to 18,934.08, 26,124.84 and 12,642 is: 17,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.08 : 26,124.84 = 12,642 : x
  2. Step 2: Convert to fraction form
    18,934.08/26,124.84 = 12,642/x
  3. Step 3: Cross multiply
    18,934.08x = 26,124.84 × 12,642
  4. Step 4: Simplify right side
    18,934.08x = 330,270,227.28
  5. Step 5: Solve for x
    x = 330,270,227.28/18,934.08
  6. Step 6: Final answer
    x = 17,443.16

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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.