Home / 19,001.36-28,486.67-7,916.38

Finding the Fourth Proportional to 19,001.36, 28,486.67 and 7,916.38

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Solution

The fourth proportional to 19,001.36, 28,486.67 and 7,916.38 is: 11,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.36 : 28,486.67 = 7,916.38 : x
  2. Step 2: Convert to fraction form
    19,001.36/28,486.67 = 7,916.38/x
  3. Step 3: Cross multiply
    19,001.36x = 28,486.67 × 7,916.38
  4. Step 4: Simplify right side
    19,001.36x = 225,511,304.65
  5. Step 5: Solve for x
    x = 225,511,304.65/19,001.36
  6. Step 6: Final answer
    x = 11,868.17

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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.