Home / 9,789.73-13,509.84-5,313.48

Finding the Fourth Proportional to 9,789.73, 13,509.84 and 5,313.48

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Solution

The fourth proportional to 9,789.73, 13,509.84 and 5,313.48 is: 7,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.73 : 13,509.84 = 5,313.48 : x
  2. Step 2: Convert to fraction form
    9,789.73/13,509.84 = 5,313.48/x
  3. Step 3: Cross multiply
    9,789.73x = 13,509.84 × 5,313.48
  4. Step 4: Simplify right side
    9,789.73x = 71,784,251.51
  5. Step 5: Solve for x
    x = 71,784,251.51/9,789.73
  6. Step 6: Final answer
    x = 7,332.61

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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.