Home / 13,765.02-18,951.51-11,996.70

Finding the Fourth Proportional to 13,765.02, 18,951.51 and 11,996.70

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Solution

The fourth proportional to 13,765.02, 18,951.51 and 11,996.70 is: 16,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.02 : 18,951.51 = 11,996.70 : x
  2. Step 2: Convert to fraction form
    13,765.02/18,951.51 = 11,996.70/x
  3. Step 3: Cross multiply
    13,765.02x = 18,951.51 × 11,996.70
  4. Step 4: Simplify right side
    13,765.02x = 227,355,580.02
  5. Step 5: Solve for x
    x = 227,355,580.02/13,765.02
  6. Step 6: Final answer
    x = 16,516.91

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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.