Home / 10,561.09-15,844.64-5,289.75

Finding the Fourth Proportional to 10,561.09, 15,844.64 and 5,289.75

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Solution

The fourth proportional to 10,561.09, 15,844.64 and 5,289.75 is: 7,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.09 : 15,844.64 = 5,289.75 : x
  2. Step 2: Convert to fraction form
    10,561.09/15,844.64 = 5,289.75/x
  3. Step 3: Cross multiply
    10,561.09x = 15,844.64 × 5,289.75
  4. Step 4: Simplify right side
    10,561.09x = 83,814,184.44
  5. Step 5: Solve for x
    x = 83,814,184.44/10,561.09
  6. Step 6: Final answer
    x = 7,936.13

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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.