Home / 7,427.28-11,142.36-3,730.32

Finding the Fourth Proportional to 7,427.28, 11,142.36 and 3,730.32

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Solution

The fourth proportional to 7,427.28, 11,142.36 and 3,730.32 is: 5,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.28 : 11,142.36 = 3,730.32 : x
  2. Step 2: Convert to fraction form
    7,427.28/11,142.36 = 3,730.32/x
  3. Step 3: Cross multiply
    7,427.28x = 11,142.36 × 3,730.32
  4. Step 4: Simplify right side
    7,427.28x = 41,564,568.36
  5. Step 5: Solve for x
    x = 41,564,568.36/7,427.28
  6. Step 6: Final answer
    x = 5,596.20

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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.