Home / 19,684.40-27,163.80-10,731.76

Finding the Fourth Proportional to 19,684.40, 27,163.80 and 10,731.76

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Solution

The fourth proportional to 19,684.40, 27,163.80 and 10,731.76 is: 14,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,684.40 : 27,163.80 = 10,731.76 : x
  2. Step 2: Convert to fraction form
    19,684.40/27,163.80 = 10,731.76/x
  3. Step 3: Cross multiply
    19,684.40x = 27,163.80 × 10,731.76
  4. Step 4: Simplify right side
    19,684.40x = 291,515,382.29
  5. Step 5: Solve for x
    x = 291,515,382.29/19,684.40
  6. Step 6: Final answer
    x = 14,809.46

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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.