Home / 13,104.24-18,102.23-11,687.47

Finding the Fourth Proportional to 13,104.24, 18,102.23 and 11,687.47

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Solution

The fourth proportional to 13,104.24, 18,102.23 and 11,687.47 is: 16,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.24 : 18,102.23 = 11,687.47 : x
  2. Step 2: Convert to fraction form
    13,104.24/18,102.23 = 11,687.47/x
  3. Step 3: Cross multiply
    13,104.24x = 18,102.23 × 11,687.47
  4. Step 4: Simplify right side
    13,104.24x = 211,569,270.06
  5. Step 5: Solve for x
    x = 211,569,270.06/13,104.24
  6. Step 6: Final answer
    x = 16,145.10

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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.