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Finding the Fourth Proportional to 18,871.89, 26,044.29 and 10,488.39

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Solution

The fourth proportional to 18,871.89, 26,044.29 and 10,488.39 is: 14,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.89 : 26,044.29 = 10,488.39 : x
  2. Step 2: Convert to fraction form
    18,871.89/26,044.29 = 10,488.39/x
  3. Step 3: Cross multiply
    18,871.89x = 26,044.29 × 10,488.39
  4. Step 4: Simplify right side
    18,871.89x = 273,162,670.79
  5. Step 5: Solve for x
    x = 273,162,670.79/18,871.89
  6. Step 6: Final answer
    x = 14,474.58

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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.