Home / 6,471.12-9,699.48-4,247.40

Finding the Fourth Proportional to 6,471.12, 9,699.48 and 4,247.40

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Solution

The fourth proportional to 6,471.12, 9,699.48 and 4,247.40 is: 6,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.12 : 9,699.48 = 4,247.40 : x
  2. Step 2: Convert to fraction form
    6,471.12/9,699.48 = 4,247.40/x
  3. Step 3: Cross multiply
    6,471.12x = 9,699.48 × 4,247.40
  4. Step 4: Simplify right side
    6,471.12x = 41,197,571.35
  5. Step 5: Solve for x
    x = 41,197,571.35/6,471.12
  6. Step 6: Final answer
    x = 6,366.37

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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.