Home / 6,980.48-9,621.12-5,114.24

Finding the Fourth Proportional to 6,980.48, 9,621.12 and 5,114.24

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Solution

The fourth proportional to 6,980.48, 9,621.12 and 5,114.24 is: 7,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.48 : 9,621.12 = 5,114.24 : x
  2. Step 2: Convert to fraction form
    6,980.48/9,621.12 = 5,114.24/x
  3. Step 3: Cross multiply
    6,980.48x = 9,621.12 × 5,114.24
  4. Step 4: Simplify right side
    6,980.48x = 49,204,716.75
  5. Step 5: Solve for x
    x = 49,204,716.75/6,980.48
  6. Step 6: Final answer
    x = 7,048.90

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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.