Home / 7,680.48-11,507.22-5,477.82

Finding the Fourth Proportional to 7,680.48, 11,507.22 and 5,477.82

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Solution

The fourth proportional to 7,680.48, 11,507.22 and 5,477.82 is: 8,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.48 : 11,507.22 = 5,477.82 : x
  2. Step 2: Convert to fraction form
    7,680.48/11,507.22 = 5,477.82/x
  3. Step 3: Cross multiply
    7,680.48x = 11,507.22 × 5,477.82
  4. Step 4: Simplify right side
    7,680.48x = 63,034,479.86
  5. Step 5: Solve for x
    x = 63,034,479.86/7,680.48
  6. Step 6: Final answer
    x = 8,207.10

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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.