Home / 10,125.72-13,976.46-6,401.88

Finding the Fourth Proportional to 10,125.72, 13,976.46 and 6,401.88

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Solution

The fourth proportional to 10,125.72, 13,976.46 and 6,401.88 is: 8,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.72 : 13,976.46 = 6,401.88 : x
  2. Step 2: Convert to fraction form
    10,125.72/13,976.46 = 6,401.88/x
  3. Step 3: Cross multiply
    10,125.72x = 13,976.46 × 6,401.88
  4. Step 4: Simplify right side
    10,125.72x = 89,475,619.74
  5. Step 5: Solve for x
    x = 89,475,619.74/10,125.72
  6. Step 6: Final answer
    x = 8,836.47

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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.