Home / 13,319.26-19,972.69-7,774.22

Finding the Fourth Proportional to 13,319.26, 19,972.69 and 7,774.22

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Solution

The fourth proportional to 13,319.26, 19,972.69 and 7,774.22 is: 11,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.26 : 19,972.69 = 7,774.22 : x
  2. Step 2: Convert to fraction form
    13,319.26/19,972.69 = 7,774.22/x
  3. Step 3: Cross multiply
    13,319.26x = 19,972.69 × 7,774.22
  4. Step 4: Simplify right side
    13,319.26x = 155,272,086.05
  5. Step 5: Solve for x
    x = 155,272,086.05/13,319.26
  6. Step 6: Final answer
    x = 11,657.71

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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.