Home / 10,531.10-15,796.35-4,289.57

Finding the Fourth Proportional to 10,531.10, 15,796.35 and 4,289.57

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Solution

The fourth proportional to 10,531.10, 15,796.35 and 4,289.57 is: 6,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.10 : 15,796.35 = 4,289.57 : x
  2. Step 2: Convert to fraction form
    10,531.10/15,796.35 = 4,289.57/x
  3. Step 3: Cross multiply
    10,531.10x = 15,796.35 × 4,289.57
  4. Step 4: Simplify right side
    10,531.10x = 67,759,527.62
  5. Step 5: Solve for x
    x = 67,759,527.62/10,531.10
  6. Step 6: Final answer
    x = 6,434.23

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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.