Home / 13,940.46-19,237.91-7,972.38

Finding the Fourth Proportional to 13,940.46, 19,237.91 and 7,972.38

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Solution

The fourth proportional to 13,940.46, 19,237.91 and 7,972.38 is: 11,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.46 : 19,237.91 = 7,972.38 : x
  2. Step 2: Convert to fraction form
    13,940.46/19,237.91 = 7,972.38/x
  3. Step 3: Cross multiply
    13,940.46x = 19,237.91 × 7,972.38
  4. Step 4: Simplify right side
    13,940.46x = 153,371,889.06
  5. Step 5: Solve for x
    x = 153,371,889.06/13,940.46
  6. Step 6: Final answer
    x = 11,001.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.