Home / 15,694.46-21,655.40-9,727.59

Finding the Fourth Proportional to 15,694.46, 21,655.40 and 9,727.59

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Solution

The fourth proportional to 15,694.46, 21,655.40 and 9,727.59 is: 13,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.46 : 21,655.40 = 9,727.59 : x
  2. Step 2: Convert to fraction form
    15,694.46/21,655.40 = 9,727.59/x
  3. Step 3: Cross multiply
    15,694.46x = 21,655.40 × 9,727.59
  4. Step 4: Simplify right side
    15,694.46x = 210,654,939.77
  5. Step 5: Solve for x
    x = 210,654,939.77/15,694.46
  6. Step 6: Final answer
    x = 13,422.25

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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.