Home / 13,728.42-20,625.48-8,807.64

Finding the Fourth Proportional to 13,728.42, 20,625.48 and 8,807.64

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Solution

The fourth proportional to 13,728.42, 20,625.48 and 8,807.64 is: 13,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.42 : 20,625.48 = 8,807.64 : x
  2. Step 2: Convert to fraction form
    13,728.42/20,625.48 = 8,807.64/x
  3. Step 3: Cross multiply
    13,728.42x = 20,625.48 × 8,807.64
  4. Step 4: Simplify right side
    13,728.42x = 181,661,802.67
  5. Step 5: Solve for x
    x = 181,661,802.67/13,728.42
  6. Step 6: Final answer
    x = 13,232.54

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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.