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Finding the Fourth Proportional to 17,803.71, 26,714.84 and 12,913.71

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Solution

The fourth proportional to 17,803.71, 26,714.84 and 12,913.71 is: 19,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,803.71 : 26,714.84 = 12,913.71 : x
  2. Step 2: Convert to fraction form
    17,803.71/26,714.84 = 12,913.71/x
  3. Step 3: Cross multiply
    17,803.71x = 26,714.84 × 12,913.71
  4. Step 4: Simplify right side
    17,803.71x = 344,987,728.74
  5. Step 5: Solve for x
    x = 344,987,728.74/17,803.71
  6. Step 6: Final answer
    x = 19,377.30

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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.