Home / 7,809.12-11,700.68-5,495.76

Finding the Fourth Proportional to 7,809.12, 11,700.68 and 5,495.76

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Solution

The fourth proportional to 7,809.12, 11,700.68 and 5,495.76 is: 8,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.12 : 11,700.68 = 5,495.76 : x
  2. Step 2: Convert to fraction form
    7,809.12/11,700.68 = 5,495.76/x
  3. Step 3: Cross multiply
    7,809.12x = 11,700.68 × 5,495.76
  4. Step 4: Simplify right side
    7,809.12x = 64,304,129.12
  5. Step 5: Solve for x
    x = 64,304,129.12/7,809.12
  6. Step 6: Final answer
    x = 8,234.49

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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.