Home / 12,002.79-16,564.07-6,625.86

Finding the Fourth Proportional to 12,002.79, 16,564.07 and 6,625.86

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Solution

The fourth proportional to 12,002.79, 16,564.07 and 6,625.86 is: 9,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.79 : 16,564.07 = 6,625.86 : x
  2. Step 2: Convert to fraction form
    12,002.79/16,564.07 = 6,625.86/x
  3. Step 3: Cross multiply
    12,002.79x = 16,564.07 × 6,625.86
  4. Step 4: Simplify right side
    12,002.79x = 109,751,175.72
  5. Step 5: Solve for x
    x = 109,751,175.72/12,002.79
  6. Step 6: Final answer
    x = 9,143.81

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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.