Home / 15,726.54-21,659.52-11,740.72

Finding the Fourth Proportional to 15,726.54, 21,659.52 and 11,740.72

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Solution

The fourth proportional to 15,726.54, 21,659.52 and 11,740.72 is: 16,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.54 : 21,659.52 = 11,740.72 : x
  2. Step 2: Convert to fraction form
    15,726.54/21,659.52 = 11,740.72/x
  3. Step 3: Cross multiply
    15,726.54x = 21,659.52 × 11,740.72
  4. Step 4: Simplify right side
    15,726.54x = 254,298,359.65
  5. Step 5: Solve for x
    x = 254,298,359.65/15,726.54
  6. Step 6: Final answer
    x = 16,170.01

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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.