Home / 13,314.26-19,965.21-7,769.20

Finding the Fourth Proportional to 13,314.26, 19,965.21 and 7,769.20

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Solution

The fourth proportional to 13,314.26, 19,965.21 and 7,769.20 is: 11,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.26 : 19,965.21 = 7,769.20 : x
  2. Step 2: Convert to fraction form
    13,314.26/19,965.21 = 7,769.20/x
  3. Step 3: Cross multiply
    13,314.26x = 19,965.21 × 7,769.20
  4. Step 4: Simplify right side
    13,314.26x = 155,113,709.53
  5. Step 5: Solve for x
    x = 155,113,709.53/13,314.26
  6. Step 6: Final answer
    x = 11,650.19

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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.