Home / 12,321.69-18,476.61-8,625.66

Finding the Fourth Proportional to 12,321.69, 18,476.61 and 8,625.66

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Solution

The fourth proportional to 12,321.69, 18,476.61 and 8,625.66 is: 12,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.69 : 18,476.61 = 8,625.66 : x
  2. Step 2: Convert to fraction form
    12,321.69/18,476.61 = 8,625.66/x
  3. Step 3: Cross multiply
    12,321.69x = 18,476.61 × 8,625.66
  4. Step 4: Simplify right side
    12,321.69x = 159,372,955.81
  5. Step 5: Solve for x
    x = 159,372,955.81/12,321.69
  6. Step 6: Final answer
    x = 12,934.34

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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.