Home / 10,516.05-15,774-2,618.51

Finding the Fourth Proportional to 10,516.05, 15,774 and 2,618.51

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Solution

The fourth proportional to 10,516.05, 15,774 and 2,618.51 is: 3,927.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.05 : 15,774 = 2,618.51 : x
  2. Step 2: Convert to fraction form
    10,516.05/15,774 = 2,618.51/x
  3. Step 3: Cross multiply
    10,516.05x = 15,774 × 2,618.51
  4. Step 4: Simplify right side
    10,516.05x = 41,304,376.74
  5. Step 5: Solve for x
    x = 41,304,376.74/10,516.05
  6. Step 6: Final answer
    x = 3,927.75

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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.