Home / 9,209.35-12,713.16-5,431.24

Finding the Fourth Proportional to 9,209.35, 12,713.16 and 5,431.24

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Solution

The fourth proportional to 9,209.35, 12,713.16 and 5,431.24 is: 7,497.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.35 : 12,713.16 = 5,431.24 : x
  2. Step 2: Convert to fraction form
    9,209.35/12,713.16 = 5,431.24/x
  3. Step 3: Cross multiply
    9,209.35x = 12,713.16 × 5,431.24
  4. Step 4: Simplify right side
    9,209.35x = 69,048,223.12
  5. Step 5: Solve for x
    x = 69,048,223.12/9,209.35
  6. Step 6: Final answer
    x = 7,497.62

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Half scale
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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.