Home / 6,621.74-9,918.03-4,420.16

Finding the Fourth Proportional to 6,621.74, 9,918.03 and 4,420.16

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Solution

The fourth proportional to 6,621.74, 9,918.03 and 4,420.16 is: 6,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.74 : 9,918.03 = 4,420.16 : x
  2. Step 2: Convert to fraction form
    6,621.74/9,918.03 = 4,420.16/x
  3. Step 3: Cross multiply
    6,621.74x = 9,918.03 × 4,420.16
  4. Step 4: Simplify right side
    6,621.74x = 43,839,279.48
  5. Step 5: Solve for x
    x = 43,839,279.48/6,621.74
  6. Step 6: Final answer
    x = 6,620.51

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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.