Home / 7,621.32-11,451.12-4,849.20

Finding the Fourth Proportional to 7,621.32, 11,451.12 and 4,849.20

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Solution

The fourth proportional to 7,621.32, 11,451.12 and 4,849.20 is: 7,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.32 : 11,451.12 = 4,849.20 : x
  2. Step 2: Convert to fraction form
    7,621.32/11,451.12 = 4,849.20/x
  3. Step 3: Cross multiply
    7,621.32x = 11,451.12 × 4,849.20
  4. Step 4: Simplify right side
    7,621.32x = 55,528,771.10
  5. Step 5: Solve for x
    x = 55,528,771.10/7,621.32
  6. Step 6: Final answer
    x = 7,285.98

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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.