Home / 7,621.16-11,422.32-4,498

Finding the Fourth Proportional to 7,621.16, 11,422.32 and 4,498

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Solution

The fourth proportional to 7,621.16, 11,422.32 and 4,498 is: 6,741.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.16 : 11,422.32 = 4,498 : x
  2. Step 2: Convert to fraction form
    7,621.16/11,422.32 = 4,498/x
  3. Step 3: Cross multiply
    7,621.16x = 11,422.32 × 4,498
  4. Step 4: Simplify right side
    7,621.16x = 51,377,595.36
  5. Step 5: Solve for x
    x = 51,377,595.36/7,621.16
  6. Step 6: Final answer
    x = 6,741.44

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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.