Home / 8,678.91-11,976.90-4,700.04

Finding the Fourth Proportional to 8,678.91, 11,976.90 and 4,700.04

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Solution

The fourth proportional to 8,678.91, 11,976.90 and 4,700.04 is: 6,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.91 : 11,976.90 = 4,700.04 : x
  2. Step 2: Convert to fraction form
    8,678.91/11,976.90 = 4,700.04/x
  3. Step 3: Cross multiply
    8,678.91x = 11,976.90 × 4,700.04
  4. Step 4: Simplify right side
    8,678.91x = 56,291,909.08
  5. Step 5: Solve for x
    x = 56,291,909.08/8,678.91
  6. Step 6: Final answer
    x = 6,486.06

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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.