Home / 12,748.26-19,115.81-5,722.25

Finding the Fourth Proportional to 12,748.26, 19,115.81 and 5,722.25

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Solution

The fourth proportional to 12,748.26, 19,115.81 and 5,722.25 is: 8,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.26 : 19,115.81 = 5,722.25 : x
  2. Step 2: Convert to fraction form
    12,748.26/19,115.81 = 5,722.25/x
  3. Step 3: Cross multiply
    12,748.26x = 19,115.81 × 5,722.25
  4. Step 4: Simplify right side
    12,748.26x = 109,385,319.58
  5. Step 5: Solve for x
    x = 109,385,319.58/12,748.26
  6. Step 6: Final answer
    x = 8,580.42

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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.