Home / 19,907.64-27,439.02-13,609.08

Finding the Fourth Proportional to 19,907.64, 27,439.02 and 13,609.08

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Solution

The fourth proportional to 19,907.64, 27,439.02 and 13,609.08 is: 18,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.64 : 27,439.02 = 13,609.08 : x
  2. Step 2: Convert to fraction form
    19,907.64/27,439.02 = 13,609.08/x
  3. Step 3: Cross multiply
    19,907.64x = 27,439.02 × 13,609.08
  4. Step 4: Simplify right side
    19,907.64x = 373,419,818.30
  5. Step 5: Solve for x
    x = 373,419,818.30/19,907.64
  6. Step 6: Final answer
    x = 18,757.61

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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.