Home / 19,724.08-27,209.10-13,350.88

Finding the Fourth Proportional to 19,724.08, 27,209.10 and 13,350.88

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Solution

The fourth proportional to 19,724.08, 27,209.10 and 13,350.88 is: 18,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.08 : 27,209.10 = 13,350.88 : x
  2. Step 2: Convert to fraction form
    19,724.08/27,209.10 = 13,350.88/x
  3. Step 3: Cross multiply
    19,724.08x = 27,209.10 × 13,350.88
  4. Step 4: Simplify right side
    19,724.08x = 363,265,429.01
  5. Step 5: Solve for x
    x = 363,265,429.01/19,724.08
  6. Step 6: Final answer
    x = 18,417.36

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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.