Home / 10,211.15-14,087.88-6,380.19

Finding the Fourth Proportional to 10,211.15, 14,087.88 and 6,380.19

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Solution

The fourth proportional to 10,211.15, 14,087.88 and 6,380.19 is: 8,802.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.15 : 14,087.88 = 6,380.19 : x
  2. Step 2: Convert to fraction form
    10,211.15/14,087.88 = 6,380.19/x
  3. Step 3: Cross multiply
    10,211.15x = 14,087.88 × 6,380.19
  4. Step 4: Simplify right side
    10,211.15x = 89,883,351.10
  5. Step 5: Solve for x
    x = 89,883,351.10/10,211.15
  6. Step 6: Final answer
    x = 8,802.47

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Half scale
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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.