Home / 13,827.70-19,083.36-7,861.24

Finding the Fourth Proportional to 13,827.70, 19,083.36 and 7,861.24

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Solution

The fourth proportional to 13,827.70, 19,083.36 and 7,861.24 is: 10,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.70 : 19,083.36 = 7,861.24 : x
  2. Step 2: Convert to fraction form
    13,827.70/19,083.36 = 7,861.24/x
  3. Step 3: Cross multiply
    13,827.70x = 19,083.36 × 7,861.24
  4. Step 4: Simplify right side
    13,827.70x = 150,018,872.97
  5. Step 5: Solve for x
    x = 150,018,872.97/13,827.70
  6. Step 6: Final answer
    x = 10,849.16

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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.