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Finding the Fourth Proportional to 12,603.82, 18,837.80 and 11,010.14

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Solution

The fourth proportional to 12,603.82, 18,837.80 and 11,010.14 is: 16,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.82 : 18,837.80 = 11,010.14 : x
  2. Step 2: Convert to fraction form
    12,603.82/18,837.80 = 11,010.14/x
  3. Step 3: Cross multiply
    12,603.82x = 18,837.80 × 11,010.14
  4. Step 4: Simplify right side
    12,603.82x = 207,406,815.29
  5. Step 5: Solve for x
    x = 207,406,815.29/12,603.82
  6. Step 6: Final answer
    x = 16,455.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.