Home / 13,767.30-18,996.53-8,100.95

Finding the Fourth Proportional to 13,767.30, 18,996.53 and 8,100.95

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Solution

The fourth proportional to 13,767.30, 18,996.53 and 8,100.95 is: 11,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.30 : 18,996.53 = 8,100.95 : x
  2. Step 2: Convert to fraction form
    13,767.30/18,996.53 = 8,100.95/x
  3. Step 3: Cross multiply
    13,767.30x = 18,996.53 × 8,100.95
  4. Step 4: Simplify right side
    13,767.30x = 153,889,804.22
  5. Step 5: Solve for x
    x = 153,889,804.22/13,767.30
  6. Step 6: Final answer
    x = 11,177.92

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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.