Home / 10,130.38-15,185.30-4,857.64

Finding the Fourth Proportional to 10,130.38, 15,185.30 and 4,857.64

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Solution

The fourth proportional to 10,130.38, 15,185.30 and 4,857.64 is: 7,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.38 : 15,185.30 = 4,857.64 : x
  2. Step 2: Convert to fraction form
    10,130.38/15,185.30 = 4,857.64/x
  3. Step 3: Cross multiply
    10,130.38x = 15,185.30 × 4,857.64
  4. Step 4: Simplify right side
    10,130.38x = 73,764,720.69
  5. Step 5: Solve for x
    x = 73,764,720.69/10,130.38
  6. Step 6: Final answer
    x = 7,281.54

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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.