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Finding the Fourth Proportional to 18,068.67, 27,103.71 and 4,921.00

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Solution

The fourth proportional to 18,068.67, 27,103.71 and 4,921.00 is: 7,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.67 : 27,103.71 = 4,921.00 : x
  2. Step 2: Convert to fraction form
    18,068.67/27,103.71 = 4,921.00/x
  3. Step 3: Cross multiply
    18,068.67x = 27,103.71 × 4,921.00
  4. Step 4: Simplify right side
    18,068.67x = 133,377,460.06
  5. Step 5: Solve for x
    x = 133,377,460.06/18,068.67
  6. Step 6: Final answer
    x = 7,381.70

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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.