Home / 12,721.38-19,084.90-5,224.93

Finding the Fourth Proportional to 12,721.38, 19,084.90 and 5,224.93

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Solution

The fourth proportional to 12,721.38, 19,084.90 and 5,224.93 is: 7,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.38 : 19,084.90 = 5,224.93 : x
  2. Step 2: Convert to fraction form
    12,721.38/19,084.90 = 5,224.93/x
  3. Step 3: Cross multiply
    12,721.38x = 19,084.90 × 5,224.93
  4. Step 4: Simplify right side
    12,721.38x = 99,717,266.56
  5. Step 5: Solve for x
    x = 99,717,266.56/12,721.38
  6. Step 6: Final answer
    x = 7,838.56

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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.