Home / 8,130.40-12,196.26-2,287.48

Finding the Fourth Proportional to 8,130.40, 12,196.26 and 2,287.48

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Solution

The fourth proportional to 8,130.40, 12,196.26 and 2,287.48 is: 3,431.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.40 : 12,196.26 = 2,287.48 : x
  2. Step 2: Convert to fraction form
    8,130.40/12,196.26 = 2,287.48/x
  3. Step 3: Cross multiply
    8,130.40x = 12,196.26 × 2,287.48
  4. Step 4: Simplify right side
    8,130.40x = 27,898,700.82
  5. Step 5: Solve for x
    x = 27,898,700.82/8,130.40
  6. Step 6: Final answer
    x = 3,431.41

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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.