Home / 9,933.92-13,708.85-5,457.78

Finding the Fourth Proportional to 9,933.92, 13,708.85 and 5,457.78

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Solution

The fourth proportional to 9,933.92, 13,708.85 and 5,457.78 is: 7,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,933.92 : 13,708.85 = 5,457.78 : x
  2. Step 2: Convert to fraction form
    9,933.92/13,708.85 = 5,457.78/x
  3. Step 3: Cross multiply
    9,933.92x = 13,708.85 × 5,457.78
  4. Step 4: Simplify right side
    9,933.92x = 74,819,860.06
  5. Step 5: Solve for x
    x = 74,819,860.06/9,933.92
  6. Step 6: Final answer
    x = 7,531.76

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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.