Home / 12,690.11-19,034.73-3,330.06

Finding the Fourth Proportional to 12,690.11, 19,034.73 and 3,330.06

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Solution

The fourth proportional to 12,690.11, 19,034.73 and 3,330.06 is: 4,994.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.11 : 19,034.73 = 3,330.06 : x
  2. Step 2: Convert to fraction form
    12,690.11/19,034.73 = 3,330.06/x
  3. Step 3: Cross multiply
    12,690.11x = 19,034.73 × 3,330.06
  4. Step 4: Simplify right side
    12,690.11x = 63,386,681.16
  5. Step 5: Solve for x
    x = 63,386,681.16/12,690.11
  6. Step 6: Final answer
    x = 4,994.97

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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.