Home / 10,089.64-15,129.66-3,515.02

Finding the Fourth Proportional to 10,089.64, 15,129.66 and 3,515.02

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Solution

The fourth proportional to 10,089.64, 15,129.66 and 3,515.02 is: 5,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.64 : 15,129.66 = 3,515.02 : x
  2. Step 2: Convert to fraction form
    10,089.64/15,129.66 = 3,515.02/x
  3. Step 3: Cross multiply
    10,089.64x = 15,129.66 × 3,515.02
  4. Step 4: Simplify right side
    10,089.64x = 53,181,057.49
  5. Step 5: Solve for x
    x = 53,181,057.49/10,089.64
  6. Step 6: Final answer
    x = 5,270.86

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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.