Home / 10,028.28-15,036.90-6,869.36

Finding the Fourth Proportional to 10,028.28, 15,036.90 and 6,869.36

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Solution

The fourth proportional to 10,028.28, 15,036.90 and 6,869.36 is: 10,300.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.28 : 15,036.90 = 6,869.36 : x
  2. Step 2: Convert to fraction form
    10,028.28/15,036.90 = 6,869.36/x
  3. Step 3: Cross multiply
    10,028.28x = 15,036.90 × 6,869.36
  4. Step 4: Simplify right side
    10,028.28x = 103,293,879.38
  5. Step 5: Solve for x
    x = 103,293,879.38/10,028.28
  6. Step 6: Final answer
    x = 10,300.26

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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.