Home / 15,728.36-21,706.03-9,015.10

Finding the Fourth Proportional to 15,728.36, 21,706.03 and 9,015.10

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Solution

The fourth proportional to 15,728.36, 21,706.03 and 9,015.10 is: 12,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728.36 : 21,706.03 = 9,015.10 : x
  2. Step 2: Convert to fraction form
    15,728.36/21,706.03 = 9,015.10/x
  3. Step 3: Cross multiply
    15,728.36x = 21,706.03 × 9,015.10
  4. Step 4: Simplify right side
    15,728.36x = 195,682,110.15
  5. Step 5: Solve for x
    x = 195,682,110.15/15,728.36
  6. Step 6: Final answer
    x = 12,441.36

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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.