Home / 9,921.39-14,880.38-2,806.13

Finding the Fourth Proportional to 9,921.39, 14,880.38 and 2,806.13

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Solution

The fourth proportional to 9,921.39, 14,880.38 and 2,806.13 is: 4,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.39 : 14,880.38 = 2,806.13 : x
  2. Step 2: Convert to fraction form
    9,921.39/14,880.38 = 2,806.13/x
  3. Step 3: Cross multiply
    9,921.39x = 14,880.38 × 2,806.13
  4. Step 4: Simplify right side
    9,921.39x = 41,756,220.20
  5. Step 5: Solve for x
    x = 41,756,220.20/9,921.39
  6. Step 6: Final answer
    x = 4,208.71

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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.