Home / 12,548.85-18,827.91-5,151.33

Finding the Fourth Proportional to 12,548.85, 18,827.91 and 5,151.33

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Solution

The fourth proportional to 12,548.85, 18,827.91 and 5,151.33 is: 7,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.85 : 18,827.91 = 5,151.33 : x
  2. Step 2: Convert to fraction form
    12,548.85/18,827.91 = 5,151.33/x
  3. Step 3: Cross multiply
    12,548.85x = 18,827.91 × 5,151.33
  4. Step 4: Simplify right side
    12,548.85x = 96,988,777.62
  5. Step 5: Solve for x
    x = 96,988,777.62/12,548.85
  6. Step 6: Final answer
    x = 7,728.90

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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.