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Finding the Fourth Proportional to 12,008.70, 18,013.05 and 10,064.70

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Solution

The fourth proportional to 12,008.70, 18,013.05 and 10,064.70 is: 15,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.70 : 18,013.05 = 10,064.70 : x
  2. Step 2: Convert to fraction form
    12,008.70/18,013.05 = 10,064.70/x
  3. Step 3: Cross multiply
    12,008.70x = 18,013.05 × 10,064.70
  4. Step 4: Simplify right side
    12,008.70x = 181,295,944.34
  5. Step 5: Solve for x
    x = 181,295,944.34/12,008.70
  6. Step 6: Final answer
    x = 15,097.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.