Home / 10,243.20-15,368.64-3,669.12

Finding the Fourth Proportional to 10,243.20, 15,368.64 and 3,669.12

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Solution

The fourth proportional to 10,243.20, 15,368.64 and 3,669.12 is: 5,505.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.20 : 15,368.64 = 3,669.12 : x
  2. Step 2: Convert to fraction form
    10,243.20/15,368.64 = 3,669.12/x
  3. Step 3: Cross multiply
    10,243.20x = 15,368.64 × 3,669.12
  4. Step 4: Simplify right side
    10,243.20x = 56,389,384.40
  5. Step 5: Solve for x
    x = 56,389,384.40/10,243.20
  6. Step 6: Final answer
    x = 5,505.06

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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.