Home / 7,438.32-11,157.40-1,816.04

Finding the Fourth Proportional to 7,438.32, 11,157.40 and 1,816.04

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Solution

The fourth proportional to 7,438.32, 11,157.40 and 1,816.04 is: 2,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.32 : 11,157.40 = 1,816.04 : x
  2. Step 2: Convert to fraction form
    7,438.32/11,157.40 = 1,816.04/x
  3. Step 3: Cross multiply
    7,438.32x = 11,157.40 × 1,816.04
  4. Step 4: Simplify right side
    7,438.32x = 20,262,284.70
  5. Step 5: Solve for x
    x = 20,262,284.70/7,438.32
  6. Step 6: Final answer
    x = 2,724.04

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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.