Home / 15,863.36-21,896.48-9,240.64

Finding the Fourth Proportional to 15,863.36, 21,896.48 and 9,240.64

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Solution

The fourth proportional to 15,863.36, 21,896.48 and 9,240.64 is: 12,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.36 : 21,896.48 = 9,240.64 : x
  2. Step 2: Convert to fraction form
    15,863.36/21,896.48 = 9,240.64/x
  3. Step 3: Cross multiply
    15,863.36x = 21,896.48 × 9,240.64
  4. Step 4: Simplify right side
    15,863.36x = 202,337,488.95
  5. Step 5: Solve for x
    x = 202,337,488.95/15,863.36
  6. Step 6: Final answer
    x = 12,755.02

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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.