Home / 15,951.52-22,016.27-11,420.79

Finding the Fourth Proportional to 15,951.52, 22,016.27 and 11,420.79

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Solution

The fourth proportional to 15,951.52, 22,016.27 and 11,420.79 is: 15,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.52 : 22,016.27 = 11,420.79 : x
  2. Step 2: Convert to fraction form
    15,951.52/22,016.27 = 11,420.79/x
  3. Step 3: Cross multiply
    15,951.52x = 22,016.27 × 11,420.79
  4. Step 4: Simplify right side
    15,951.52x = 251,443,196.25
  5. Step 5: Solve for x
    x = 251,443,196.25/15,951.52
  6. Step 6: Final answer
    x = 15,762.96

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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.