Home / 7,612.20-10,495.21-4,918.85

Finding the Fourth Proportional to 7,612.20, 10,495.21 and 4,918.85

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Solution

The fourth proportional to 7,612.20, 10,495.21 and 4,918.85 is: 6,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.20 : 10,495.21 = 4,918.85 : x
  2. Step 2: Convert to fraction form
    7,612.20/10,495.21 = 4,918.85/x
  3. Step 3: Cross multiply
    7,612.20x = 10,495.21 × 4,918.85
  4. Step 4: Simplify right side
    7,612.20x = 51,624,370.12
  5. Step 5: Solve for x
    x = 51,624,370.12/7,612.20
  6. Step 6: Final answer
    x = 6,781.79

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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.