Home / 21,260.52-29,338.27-11,698.77

Finding the Fourth Proportional to 21,260.52, 29,338.27 and 11,698.77

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Solution

The fourth proportional to 21,260.52, 29,338.27 and 11,698.77 is: 16,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.52 : 29,338.27 = 11,698.77 : x
  2. Step 2: Convert to fraction form
    21,260.52/29,338.27 = 11,698.77/x
  3. Step 3: Cross multiply
    21,260.52x = 29,338.27 × 11,698.77
  4. Step 4: Simplify right side
    21,260.52x = 343,221,687.55
  5. Step 5: Solve for x
    x = 343,221,687.55/21,260.52
  6. Step 6: Final answer
    x = 16,143.62

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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.