Home / 10,120.85-13,971.10-6,346.17

Finding the Fourth Proportional to 10,120.85, 13,971.10 and 6,346.17

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Solution

The fourth proportional to 10,120.85, 13,971.10 and 6,346.17 is: 8,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.85 : 13,971.10 = 6,346.17 : x
  2. Step 2: Convert to fraction form
    10,120.85/13,971.10 = 6,346.17/x
  3. Step 3: Cross multiply
    10,120.85x = 13,971.10 × 6,346.17
  4. Step 4: Simplify right side
    10,120.85x = 88,662,975.69
  5. Step 5: Solve for x
    x = 88,662,975.69/10,120.85
  6. Step 6: Final answer
    x = 8,760.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.