Home / 7,471.72-10,313.46-5,120.68

Finding the Fourth Proportional to 7,471.72, 10,313.46 and 5,120.68

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Solution

The fourth proportional to 7,471.72, 10,313.46 and 5,120.68 is: 7,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.72 : 10,313.46 = 5,120.68 : x
  2. Step 2: Convert to fraction form
    7,471.72/10,313.46 = 5,120.68/x
  3. Step 3: Cross multiply
    7,471.72x = 10,313.46 × 5,120.68
  4. Step 4: Simplify right side
    7,471.72x = 52,811,928.35
  5. Step 5: Solve for x
    x = 52,811,928.35/7,471.72
  6. Step 6: Final answer
    x = 7,068.24

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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.