Home / 11,243.28-15,515.64-6,528

Finding the Fourth Proportional to 11,243.28, 15,515.64 and 6,528

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Solution

The fourth proportional to 11,243.28, 15,515.64 and 6,528 is: 9,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.28 : 15,515.64 = 6,528 : x
  2. Step 2: Convert to fraction form
    11,243.28/15,515.64 = 6,528/x
  3. Step 3: Cross multiply
    11,243.28x = 15,515.64 × 6,528
  4. Step 4: Simplify right side
    11,243.28x = 101,286,097.92
  5. Step 5: Solve for x
    x = 101,286,097.92/11,243.28
  6. Step 6: Final answer
    x = 9,008.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.