Home / 18,154.08-27,238.86-10,257.68

Finding the Fourth Proportional to 18,154.08, 27,238.86 and 10,257.68

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Solution

The fourth proportional to 18,154.08, 27,238.86 and 10,257.68 is: 15,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.08 : 27,238.86 = 10,257.68 : x
  2. Step 2: Convert to fraction form
    18,154.08/27,238.86 = 10,257.68/x
  3. Step 3: Cross multiply
    18,154.08x = 27,238.86 × 10,257.68
  4. Step 4: Simplify right side
    18,154.08x = 279,407,509.44
  5. Step 5: Solve for x
    x = 279,407,509.44/18,154.08
  6. Step 6: Final answer
    x = 15,390.89

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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.