Home / 18,728.85-25,851.24-12,360.09

Finding the Fourth Proportional to 18,728.85, 25,851.24 and 12,360.09

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Solution

The fourth proportional to 18,728.85, 25,851.24 and 12,360.09 is: 17,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.85 : 25,851.24 = 12,360.09 : x
  2. Step 2: Convert to fraction form
    18,728.85/25,851.24 = 12,360.09/x
  3. Step 3: Cross multiply
    18,728.85x = 25,851.24 × 12,360.09
  4. Step 4: Simplify right side
    18,728.85x = 319,523,653.01
  5. Step 5: Solve for x
    x = 319,523,653.01/18,728.85
  6. Step 6: Final answer
    x = 17,060.51

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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.