Home / 13,664.14-18,865.23-11,152.25

Finding the Fourth Proportional to 13,664.14, 18,865.23 and 11,152.25

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Solution

The fourth proportional to 13,664.14, 18,865.23 and 11,152.25 is: 15,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.14 : 18,865.23 = 11,152.25 : x
  2. Step 2: Convert to fraction form
    13,664.14/18,865.23 = 11,152.25/x
  3. Step 3: Cross multiply
    13,664.14x = 18,865.23 × 11,152.25
  4. Step 4: Simplify right side
    13,664.14x = 210,389,695.87
  5. Step 5: Solve for x
    x = 210,389,695.87/13,664.14
  6. Step 6: Final answer
    x = 15,397.22

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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.