Home / 12,253.11-16,906.68-7,215.48

Finding the Fourth Proportional to 12,253.11, 16,906.68 and 7,215.48

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Solution

The fourth proportional to 12,253.11, 16,906.68 and 7,215.48 is: 9,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.11 : 16,906.68 = 7,215.48 : x
  2. Step 2: Convert to fraction form
    12,253.11/16,906.68 = 7,215.48/x
  3. Step 3: Cross multiply
    12,253.11x = 16,906.68 × 7,215.48
  4. Step 4: Simplify right side
    12,253.11x = 121,989,811.41
  5. Step 5: Solve for x
    x = 121,989,811.41/12,253.11
  6. Step 6: Final answer
    x = 9,955.82

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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.