Home / 10,102.28-15,158.68-7,636.36

Finding the Fourth Proportional to 10,102.28, 15,158.68 and 7,636.36

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Solution

The fourth proportional to 10,102.28, 15,158.68 and 7,636.36 is: 11,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.28 : 15,158.68 = 7,636.36 : x
  2. Step 2: Convert to fraction form
    10,102.28/15,158.68 = 7,636.36/x
  3. Step 3: Cross multiply
    10,102.28x = 15,158.68 × 7,636.36
  4. Step 4: Simplify right side
    10,102.28x = 115,757,137.60
  5. Step 5: Solve for x
    x = 115,757,137.60/10,102.28
  6. Step 6: Final answer
    x = 11,458.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.