Home / 10,641.28-15,969.24-3,715.84

Finding the Fourth Proportional to 10,641.28, 15,969.24 and 3,715.84

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Solution

The fourth proportional to 10,641.28, 15,969.24 and 3,715.84 is: 5,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641.28 : 15,969.24 = 3,715.84 : x
  2. Step 2: Convert to fraction form
    10,641.28/15,969.24 = 3,715.84/x
  3. Step 3: Cross multiply
    10,641.28x = 15,969.24 × 3,715.84
  4. Step 4: Simplify right side
    10,641.28x = 59,339,140.76
  5. Step 5: Solve for x
    x = 59,339,140.76/10,641.28
  6. Step 6: Final answer
    x = 5,576.32

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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.