Home / 7,427.40-11,141.10-7,384.20

Finding the Fourth Proportional to 7,427.40, 11,141.10 and 7,384.20

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Solution

The fourth proportional to 7,427.40, 11,141.10 and 7,384.20 is: 11,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.40 : 11,141.10 = 7,384.20 : x
  2. Step 2: Convert to fraction form
    7,427.40/11,141.10 = 7,384.20/x
  3. Step 3: Cross multiply
    7,427.40x = 11,141.10 × 7,384.20
  4. Step 4: Simplify right side
    7,427.40x = 82,268,110.62
  5. Step 5: Solve for x
    x = 82,268,110.62/7,427.40
  6. Step 6: Final answer
    x = 11,076.30

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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.