Home / 13,260.75-18,296.72-7,957.27

Finding the Fourth Proportional to 13,260.75, 18,296.72 and 7,957.27

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Solution

The fourth proportional to 13,260.75, 18,296.72 and 7,957.27 is: 10,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.75 : 18,296.72 = 7,957.27 : x
  2. Step 2: Convert to fraction form
    13,260.75/18,296.72 = 7,957.27/x
  3. Step 3: Cross multiply
    13,260.75x = 18,296.72 × 7,957.27
  4. Step 4: Simplify right side
    13,260.75x = 145,591,901.37
  5. Step 5: Solve for x
    x = 145,591,901.37/13,260.75
  6. Step 6: Final answer
    x = 10,979.16

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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.