Home / 10,455.36-15,681.87-3,059.88

Finding the Fourth Proportional to 10,455.36, 15,681.87 and 3,059.88

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Solution

The fourth proportional to 10,455.36, 15,681.87 and 3,059.88 is: 4,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.36 : 15,681.87 = 3,059.88 : x
  2. Step 2: Convert to fraction form
    10,455.36/15,681.87 = 3,059.88/x
  3. Step 3: Cross multiply
    10,455.36x = 15,681.87 × 3,059.88
  4. Step 4: Simplify right side
    10,455.36x = 47,984,640.38
  5. Step 5: Solve for x
    x = 47,984,640.38/10,455.36
  6. Step 6: Final answer
    x = 4,589.48

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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.