Home / 9,643.24-13,306.26-5,665.64

Finding the Fourth Proportional to 9,643.24, 13,306.26 and 5,665.64

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Solution

The fourth proportional to 9,643.24, 13,306.26 and 5,665.64 is: 7,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.24 : 13,306.26 = 5,665.64 : x
  2. Step 2: Convert to fraction form
    9,643.24/13,306.26 = 5,665.64/x
  3. Step 3: Cross multiply
    9,643.24x = 13,306.26 × 5,665.64
  4. Step 4: Simplify right side
    9,643.24x = 75,388,478.91
  5. Step 5: Solve for x
    x = 75,388,478.91/9,643.24
  6. Step 6: Final answer
    x = 7,817.75

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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.