Home / 7,470.12-11,180.68-5,495.20

Finding the Fourth Proportional to 7,470.12, 11,180.68 and 5,495.20

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Solution

The fourth proportional to 7,470.12, 11,180.68 and 5,495.20 is: 8,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.12 : 11,180.68 = 5,495.20 : x
  2. Step 2: Convert to fraction form
    7,470.12/11,180.68 = 5,495.20/x
  3. Step 3: Cross multiply
    7,470.12x = 11,180.68 × 5,495.20
  4. Step 4: Simplify right side
    7,470.12x = 61,440,072.74
  5. Step 5: Solve for x
    x = 61,440,072.74/7,470.12
  6. Step 6: Final answer
    x = 8,224.78

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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.