Home / 15,767.53-21,764.47-9,396.12

Finding the Fourth Proportional to 15,767.53, 21,764.47 and 9,396.12

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Solution

The fourth proportional to 15,767.53, 21,764.47 and 9,396.12 is: 12,969.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.53 : 21,764.47 = 9,396.12 : x
  2. Step 2: Convert to fraction form
    15,767.53/21,764.47 = 9,396.12/x
  3. Step 3: Cross multiply
    15,767.53x = 21,764.47 × 9,396.12
  4. Step 4: Simplify right side
    15,767.53x = 204,501,538.05
  5. Step 5: Solve for x
    x = 204,501,538.05/15,767.53
  6. Step 6: Final answer
    x = 12,969.79

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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.