Home / 11,989.29-16,551.09-9,294.56

Finding the Fourth Proportional to 11,989.29, 16,551.09 and 9,294.56

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Solution

The fourth proportional to 11,989.29, 16,551.09 and 9,294.56 is: 12,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.29 : 16,551.09 = 9,294.56 : x
  2. Step 2: Convert to fraction form
    11,989.29/16,551.09 = 9,294.56/x
  3. Step 3: Cross multiply
    11,989.29x = 16,551.09 × 9,294.56
  4. Step 4: Simplify right side
    11,989.29x = 153,835,016.31
  5. Step 5: Solve for x
    x = 153,835,016.31/11,989.29
  6. Step 6: Final answer
    x = 12,831.04

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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.