Home / 13,568.77-18,723-7,600.69

Finding the Fourth Proportional to 13,568.77, 18,723 and 7,600.69

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Solution

The fourth proportional to 13,568.77, 18,723 and 7,600.69 is: 10,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.77 : 18,723 = 7,600.69 : x
  2. Step 2: Convert to fraction form
    13,568.77/18,723 = 7,600.69/x
  3. Step 3: Cross multiply
    13,568.77x = 18,723 × 7,600.69
  4. Step 4: Simplify right side
    13,568.77x = 142,307,718.87
  5. Step 5: Solve for x
    x = 142,307,718.87/13,568.77
  6. Step 6: Final answer
    x = 10,487.89

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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.