Home / 13,626.07-18,800.69-7,957.60

Finding the Fourth Proportional to 13,626.07, 18,800.69 and 7,957.60

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Solution

The fourth proportional to 13,626.07, 18,800.69 and 7,957.60 is: 10,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.07 : 18,800.69 = 7,957.60 : x
  2. Step 2: Convert to fraction form
    13,626.07/18,800.69 = 7,957.60/x
  3. Step 3: Cross multiply
    13,626.07x = 18,800.69 × 7,957.60
  4. Step 4: Simplify right side
    13,626.07x = 149,608,390.64
  5. Step 5: Solve for x
    x = 149,608,390.64/13,626.07
  6. Step 6: Final answer
    x = 10,979.57

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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.