Home / 18,338.32-27,503.36-5,187.68

Finding the Fourth Proportional to 18,338.32, 27,503.36 and 5,187.68

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Solution

The fourth proportional to 18,338.32, 27,503.36 and 5,187.68 is: 7,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.32 : 27,503.36 = 5,187.68 : x
  2. Step 2: Convert to fraction form
    18,338.32/27,503.36 = 5,187.68/x
  3. Step 3: Cross multiply
    18,338.32x = 27,503.36 × 5,187.68
  4. Step 4: Simplify right side
    18,338.32x = 142,678,630.60
  5. Step 5: Solve for x
    x = 142,678,630.60/18,338.32
  6. Step 6: Final answer
    x = 7,780.35

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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.