Home / 13,159.44-18,147-10,168.08

Finding the Fourth Proportional to 13,159.44, 18,147 and 10,168.08

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Solution

The fourth proportional to 13,159.44, 18,147 and 10,168.08 is: 14,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.44 : 18,147 = 10,168.08 : x
  2. Step 2: Convert to fraction form
    13,159.44/18,147 = 10,168.08/x
  3. Step 3: Cross multiply
    13,159.44x = 18,147 × 10,168.08
  4. Step 4: Simplify right side
    13,159.44x = 184,520,147.76
  5. Step 5: Solve for x
    x = 184,520,147.76/13,159.44
  6. Step 6: Final answer
    x = 14,021.88

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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.