Home / 6,621.28-9,138.90-4,500.28

Finding the Fourth Proportional to 6,621.28, 9,138.90 and 4,500.28

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Solution

The fourth proportional to 6,621.28, 9,138.90 and 4,500.28 is: 6,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.28 : 9,138.90 = 4,500.28 : x
  2. Step 2: Convert to fraction form
    6,621.28/9,138.90 = 4,500.28/x
  3. Step 3: Cross multiply
    6,621.28x = 9,138.90 × 4,500.28
  4. Step 4: Simplify right side
    6,621.28x = 41,127,608.89
  5. Step 5: Solve for x
    x = 41,127,608.89/6,621.28
  6. Step 6: Final answer
    x = 6,211.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.