Home / 9,789.57-13,487.45-9,323.01

Finding the Fourth Proportional to 9,789.57, 13,487.45 and 9,323.01

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Solution

The fourth proportional to 9,789.57, 13,487.45 and 9,323.01 is: 12,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.57 : 13,487.45 = 9,323.01 : x
  2. Step 2: Convert to fraction form
    9,789.57/13,487.45 = 9,323.01/x
  3. Step 3: Cross multiply
    9,789.57x = 13,487.45 × 9,323.01
  4. Step 4: Simplify right side
    9,789.57x = 125,743,584.61
  5. Step 5: Solve for x
    x = 125,743,584.61/9,789.57
  6. Step 6: Final answer
    x = 12,844.65

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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.