Home / 19,689.30-27,171.27-10,736.87

Finding the Fourth Proportional to 19,689.30, 27,171.27 and 10,736.87

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Solution

The fourth proportional to 19,689.30, 27,171.27 and 10,736.87 is: 14,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.30 : 27,171.27 = 10,736.87 : x
  2. Step 2: Convert to fraction form
    19,689.30/27,171.27 = 10,736.87/x
  3. Step 3: Cross multiply
    19,689.30x = 27,171.27 × 10,736.87
  4. Step 4: Simplify right side
    19,689.30x = 291,734,257.87
  5. Step 5: Solve for x
    x = 291,734,257.87/19,689.30
  6. Step 6: Final answer
    x = 14,816.89

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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.