Home / 15,833.36-21,840.52-10,455.85

Finding the Fourth Proportional to 15,833.36, 21,840.52 and 10,455.85

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Solution

The fourth proportional to 15,833.36, 21,840.52 and 10,455.85 is: 14,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,833.36 : 21,840.52 = 10,455.85 : x
  2. Step 2: Convert to fraction form
    15,833.36/21,840.52 = 10,455.85/x
  3. Step 3: Cross multiply
    15,833.36x = 21,840.52 × 10,455.85
  4. Step 4: Simplify right side
    15,833.36x = 228,361,039.56
  5. Step 5: Solve for x
    x = 228,361,039.56/15,833.36
  6. Step 6: Final answer
    x = 14,422.78

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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.