Home / 15,713.91-21,694.19-10,415.93

Finding the Fourth Proportional to 15,713.91, 21,694.19 and 10,415.93

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Solution

The fourth proportional to 15,713.91, 21,694.19 and 10,415.93 is: 14,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.91 : 21,694.19 = 10,415.93 : x
  2. Step 2: Convert to fraction form
    15,713.91/21,694.19 = 10,415.93/x
  3. Step 3: Cross multiply
    15,713.91x = 21,694.19 × 10,415.93
  4. Step 4: Simplify right side
    15,713.91x = 225,965,003.90
  5. Step 5: Solve for x
    x = 225,965,003.90/15,713.91
  6. Step 6: Final answer
    x = 14,379.93

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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.