Home / 13,255.79-19,887.05-3,896.13

Finding the Fourth Proportional to 13,255.79, 19,887.05 and 3,896.13

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Solution

The fourth proportional to 13,255.79, 19,887.05 and 3,896.13 is: 5,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.79 : 19,887.05 = 3,896.13 : x
  2. Step 2: Convert to fraction form
    13,255.79/19,887.05 = 3,896.13/x
  3. Step 3: Cross multiply
    13,255.79x = 19,887.05 × 3,896.13
  4. Step 4: Simplify right side
    13,255.79x = 77,482,616.43
  5. Step 5: Solve for x
    x = 77,482,616.43/13,255.79
  6. Step 6: Final answer
    x = 5,845.19

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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.