Home / 11,585.43-15,973.76-9,789.68

Finding the Fourth Proportional to 11,585.43, 15,973.76 and 9,789.68

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Solution

The fourth proportional to 11,585.43, 15,973.76 and 9,789.68 is: 13,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.43 : 15,973.76 = 9,789.68 : x
  2. Step 2: Convert to fraction form
    11,585.43/15,973.76 = 9,789.68/x
  3. Step 3: Cross multiply
    11,585.43x = 15,973.76 × 9,789.68
  4. Step 4: Simplify right side
    11,585.43x = 156,378,063.21
  5. Step 5: Solve for x
    x = 156,378,063.21/11,585.43
  6. Step 6: Final answer
    x = 13,497.82

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1.5x scale

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.