Home / 18,159.12-27,255.24-9,400.32

Finding the Fourth Proportional to 18,159.12, 27,255.24 and 9,400.32

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Solution

The fourth proportional to 18,159.12, 27,255.24 and 9,400.32 is: 14,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.12 : 27,255.24 = 9,400.32 : x
  2. Step 2: Convert to fraction form
    18,159.12/27,255.24 = 9,400.32/x
  3. Step 3: Cross multiply
    18,159.12x = 27,255.24 × 9,400.32
  4. Step 4: Simplify right side
    18,159.12x = 256,207,977.68
  5. Step 5: Solve for x
    x = 256,207,977.68/18,159.12
  6. Step 6: Final answer
    x = 14,109.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.