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Finding the Fourth Proportional to 18,490.98, 27,747.39 and 9,726.57

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Solution

The fourth proportional to 18,490.98, 27,747.39 and 9,726.57 is: 14,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.98 : 27,747.39 = 9,726.57 : x
  2. Step 2: Convert to fraction form
    18,490.98/27,747.39 = 9,726.57/x
  3. Step 3: Cross multiply
    18,490.98x = 27,747.39 × 9,726.57
  4. Step 4: Simplify right side
    18,490.98x = 269,886,931.15
  5. Step 5: Solve for x
    x = 269,886,931.15/18,490.98
  6. Step 6: Final answer
    x = 14,595.60

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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.