Home / 18,334.32-27,501.72-5,187.12

Finding the Fourth Proportional to 18,334.32, 27,501.72 and 5,187.12

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Solution

The fourth proportional to 18,334.32, 27,501.72 and 5,187.12 is: 7,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,334.32 : 27,501.72 = 5,187.12 : x
  2. Step 2: Convert to fraction form
    18,334.32/27,501.72 = 5,187.12/x
  3. Step 3: Cross multiply
    18,334.32x = 27,501.72 × 5,187.12
  4. Step 4: Simplify right side
    18,334.32x = 142,654,721.85
  5. Step 5: Solve for x
    x = 142,654,721.85/18,334.32
  6. Step 6: Final answer
    x = 7,780.75

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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.