Home / 9,719.28-13,412.40-5,942.49

Finding the Fourth Proportional to 9,719.28, 13,412.40 and 5,942.49

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Solution

The fourth proportional to 9,719.28, 13,412.40 and 5,942.49 is: 8,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.28 : 13,412.40 = 5,942.49 : x
  2. Step 2: Convert to fraction form
    9,719.28/13,412.40 = 5,942.49/x
  3. Step 3: Cross multiply
    9,719.28x = 13,412.40 × 5,942.49
  4. Step 4: Simplify right side
    9,719.28x = 79,703,063.98
  5. Step 5: Solve for x
    x = 79,703,063.98/9,719.28
  6. Step 6: Final answer
    x = 8,200.51

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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.