Home / 9,208.13-12,704.16-5,621.79

Finding the Fourth Proportional to 9,208.13, 12,704.16 and 5,621.79

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Solution

The fourth proportional to 9,208.13, 12,704.16 and 5,621.79 is: 7,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.13 : 12,704.16 = 5,621.79 : x
  2. Step 2: Convert to fraction form
    9,208.13/12,704.16 = 5,621.79/x
  3. Step 3: Cross multiply
    9,208.13x = 12,704.16 × 5,621.79
  4. Step 4: Simplify right side
    9,208.13x = 71,420,119.65
  5. Step 5: Solve for x
    x = 71,420,119.65/9,208.13
  6. Step 6: Final answer
    x = 7,756.20

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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.