Home / 15,561.14-21,474.80-9,512.36

Finding the Fourth Proportional to 15,561.14, 21,474.80 and 9,512.36

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Solution

The fourth proportional to 15,561.14, 21,474.80 and 9,512.36 is: 13,127.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.14 : 21,474.80 = 9,512.36 : x
  2. Step 2: Convert to fraction form
    15,561.14/21,474.80 = 9,512.36/x
  3. Step 3: Cross multiply
    15,561.14x = 21,474.80 × 9,512.36
  4. Step 4: Simplify right side
    15,561.14x = 204,276,028.53
  5. Step 5: Solve for x
    x = 204,276,028.53/15,561.14
  6. Step 6: Final answer
    x = 13,127.32

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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.