Home / 11,831.89-16,294.78-11,573.55

Finding the Fourth Proportional to 11,831.89, 16,294.78 and 11,573.55

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Solution

The fourth proportional to 11,831.89, 16,294.78 and 11,573.55 is: 15,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.89 : 16,294.78 = 11,573.55 : x
  2. Step 2: Convert to fraction form
    11,831.89/16,294.78 = 11,573.55/x
  3. Step 3: Cross multiply
    11,831.89x = 16,294.78 × 11,573.55
  4. Step 4: Simplify right side
    11,831.89x = 188,588,451.07
  5. Step 5: Solve for x
    x = 188,588,451.07/11,831.89
  6. Step 6: Final answer
    x = 15,939.00

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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.