Home / 9,287.39-13,909.66-5,581.47

Finding the Fourth Proportional to 9,287.39, 13,909.66 and 5,581.47

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Solution

The fourth proportional to 9,287.39, 13,909.66 and 5,581.47 is: 8,359.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.39 : 13,909.66 = 5,581.47 : x
  2. Step 2: Convert to fraction form
    9,287.39/13,909.66 = 5,581.47/x
  3. Step 3: Cross multiply
    9,287.39x = 13,909.66 × 5,581.47
  4. Step 4: Simplify right side
    9,287.39x = 77,636,388.21
  5. Step 5: Solve for x
    x = 77,636,388.21/9,287.39
  6. Step 6: Final answer
    x = 8,359.33

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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.