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Finding the Fourth Proportional to 18,881.79, 26,063.96 and 14,179.65

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Solution

The fourth proportional to 18,881.79, 26,063.96 and 14,179.65 is: 19,573.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.79 : 26,063.96 = 14,179.65 : x
  2. Step 2: Convert to fraction form
    18,881.79/26,063.96 = 14,179.65/x
  3. Step 3: Cross multiply
    18,881.79x = 26,063.96 × 14,179.65
  4. Step 4: Simplify right side
    18,881.79x = 369,577,830.41
  5. Step 5: Solve for x
    x = 369,577,830.41/18,881.79
  6. Step 6: Final answer
    x = 19,573.24

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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.