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Finding the Fourth Proportional to 18,952.98, 26,154.78 and 10,455.89

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Solution

The fourth proportional to 18,952.98, 26,154.78 and 10,455.89 is: 14,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.98 : 26,154.78 = 10,455.89 : x
  2. Step 2: Convert to fraction form
    18,952.98/26,154.78 = 10,455.89/x
  3. Step 3: Cross multiply
    18,952.98x = 26,154.78 × 10,455.89
  4. Step 4: Simplify right side
    18,952.98x = 273,471,371.88
  5. Step 5: Solve for x
    x = 273,471,371.88/18,952.98
  6. Step 6: Final answer
    x = 14,428.94

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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.