Home / 10,140.85-15,200.92-6,854.28

Finding the Fourth Proportional to 10,140.85, 15,200.92 and 6,854.28

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Solution

The fourth proportional to 10,140.85, 15,200.92 and 6,854.28 is: 10,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.85 : 15,200.92 = 6,854.28 : x
  2. Step 2: Convert to fraction form
    10,140.85/15,200.92 = 6,854.28/x
  3. Step 3: Cross multiply
    10,140.85x = 15,200.92 × 6,854.28
  4. Step 4: Simplify right side
    10,140.85x = 104,191,361.94
  5. Step 5: Solve for x
    x = 104,191,361.94/10,140.85
  6. Step 6: Final answer
    x = 10,274.42

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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.