Home / 17,619.35-26,399.79-12,681.59

Finding the Fourth Proportional to 17,619.35, 26,399.79 and 12,681.59

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Solution

The fourth proportional to 17,619.35, 26,399.79 and 12,681.59 is: 19,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.35 : 26,399.79 = 12,681.59 : x
  2. Step 2: Convert to fraction form
    17,619.35/26,399.79 = 12,681.59/x
  3. Step 3: Cross multiply
    17,619.35x = 26,399.79 × 12,681.59
  4. Step 4: Simplify right side
    17,619.35x = 334,791,180.87
  5. Step 5: Solve for x
    x = 334,791,180.87/17,619.35
  6. Step 6: Final answer
    x = 19,001.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.