Home / 13,727.12-20,594.32-7,151.36

Finding the Fourth Proportional to 13,727.12, 20,594.32 and 7,151.36

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Solution

The fourth proportional to 13,727.12, 20,594.32 and 7,151.36 is: 10,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.12 : 20,594.32 = 7,151.36 : x
  2. Step 2: Convert to fraction form
    13,727.12/20,594.32 = 7,151.36/x
  3. Step 3: Cross multiply
    13,727.12x = 20,594.32 × 7,151.36
  4. Step 4: Simplify right side
    13,727.12x = 147,277,396.28
  5. Step 5: Solve for x
    x = 147,277,396.28/13,727.12
  6. Step 6: Final answer
    x = 10,728.94

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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.