Home / 10,157.55-15,239.43-4,824.78

Finding the Fourth Proportional to 10,157.55, 15,239.43 and 4,824.78

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Solution

The fourth proportional to 10,157.55, 15,239.43 and 4,824.78 is: 7,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.55 : 15,239.43 = 4,824.78 : x
  2. Step 2: Convert to fraction form
    10,157.55/15,239.43 = 4,824.78/x
  3. Step 3: Cross multiply
    10,157.55x = 15,239.43 × 4,824.78
  4. Step 4: Simplify right side
    10,157.55x = 73,526,897.08
  5. Step 5: Solve for x
    x = 73,526,897.08/10,157.55
  6. Step 6: Final answer
    x = 7,238.64

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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.