Home / 9,806.40-13,532.78-5,557.44

Finding the Fourth Proportional to 9,806.40, 13,532.78 and 5,557.44

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Solution

The fourth proportional to 9,806.40, 13,532.78 and 5,557.44 is: 7,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,806.40 : 13,532.78 = 5,557.44 : x
  2. Step 2: Convert to fraction form
    9,806.40/13,532.78 = 5,557.44/x
  3. Step 3: Cross multiply
    9,806.40x = 13,532.78 × 5,557.44
  4. Step 4: Simplify right side
    9,806.40x = 75,207,585.10
  5. Step 5: Solve for x
    x = 75,207,585.10/9,806.40
  6. Step 6: Final answer
    x = 7,669.23

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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.