Home / 10,241.09-15,352.35-7,122.55

Finding the Fourth Proportional to 10,241.09, 15,352.35 and 7,122.55

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Solution

The fourth proportional to 10,241.09, 15,352.35 and 7,122.55 is: 10,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,241.09 : 15,352.35 = 7,122.55 : x
  2. Step 2: Convert to fraction form
    10,241.09/15,352.35 = 7,122.55/x
  3. Step 3: Cross multiply
    10,241.09x = 15,352.35 × 7,122.55
  4. Step 4: Simplify right side
    10,241.09x = 109,347,880.49
  5. Step 5: Solve for x
    x = 109,347,880.49/10,241.09
  6. Step 6: Final answer
    x = 10,677.37

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1.5x scale

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.