Home / 13,715.44-18,926.64-7,664.64

Finding the Fourth Proportional to 13,715.44, 18,926.64 and 7,664.64

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Solution

The fourth proportional to 13,715.44, 18,926.64 and 7,664.64 is: 10,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.44 : 18,926.64 = 7,664.64 : x
  2. Step 2: Convert to fraction form
    13,715.44/18,926.64 = 7,664.64/x
  3. Step 3: Cross multiply
    13,715.44x = 18,926.64 × 7,664.64
  4. Step 4: Simplify right side
    13,715.44x = 145,065,882.01
  5. Step 5: Solve for x
    x = 145,065,882.01/13,715.44
  6. Step 6: Final answer
    x = 10,576.83

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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.