Home / 18,390.12-27,577.60-7,295.28

Finding the Fourth Proportional to 18,390.12, 27,577.60 and 7,295.28

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Solution

The fourth proportional to 18,390.12, 27,577.60 and 7,295.28 is: 10,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.12 : 27,577.60 = 7,295.28 : x
  2. Step 2: Convert to fraction form
    18,390.12/27,577.60 = 7,295.28/x
  3. Step 3: Cross multiply
    18,390.12x = 27,577.60 × 7,295.28
  4. Step 4: Simplify right side
    18,390.12x = 201,186,313.73
  5. Step 5: Solve for x
    x = 201,186,313.73/18,390.12
  6. Step 6: Final answer
    x = 10,939.91

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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.