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Finding the Fourth Proportional to 17,934.39, 26,915.63 and 12,426.39

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Solution

The fourth proportional to 17,934.39, 26,915.63 and 12,426.39 is: 18,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,934.39 : 26,915.63 = 12,426.39 : x
  2. Step 2: Convert to fraction form
    17,934.39/26,915.63 = 12,426.39/x
  3. Step 3: Cross multiply
    17,934.39x = 26,915.63 × 12,426.39
  4. Step 4: Simplify right side
    17,934.39x = 334,464,053.34
  5. Step 5: Solve for x
    x = 334,464,053.34/17,934.39
  6. Step 6: Final answer
    x = 18,649.31

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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.