Home / 9,880.74-14,821.11-3,960.33

Finding the Fourth Proportional to 9,880.74, 14,821.11 and 3,960.33

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Solution

The fourth proportional to 9,880.74, 14,821.11 and 3,960.33 is: 5,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.74 : 14,821.11 = 3,960.33 : x
  2. Step 2: Convert to fraction form
    9,880.74/14,821.11 = 3,960.33/x
  3. Step 3: Cross multiply
    9,880.74x = 14,821.11 × 3,960.33
  4. Step 4: Simplify right side
    9,880.74x = 58,696,486.57
  5. Step 5: Solve for x
    x = 58,696,486.57/9,880.74
  6. Step 6: Final answer
    x = 5,940.50

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Half scale
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Double scale
Find fourth proportional to 9,881.74, 14,822.61 and 3,961.33
Similar ratio
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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.