Home / 7,449.20-11,157.60-4,522.40

Finding the Fourth Proportional to 7,449.20, 11,157.60 and 4,522.40

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Solution

The fourth proportional to 7,449.20, 11,157.60 and 4,522.40 is: 6,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.20 : 11,157.60 = 4,522.40 : x
  2. Step 2: Convert to fraction form
    7,449.20/11,157.60 = 4,522.40/x
  3. Step 3: Cross multiply
    7,449.20x = 11,157.60 × 4,522.40
  4. Step 4: Simplify right side
    7,449.20x = 50,459,130.24
  5. Step 5: Solve for x
    x = 50,459,130.24/7,449.20
  6. Step 6: Final answer
    x = 6,773.77

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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.