Home / 7,689.08-11,532.93-2,142.30

Finding the Fourth Proportional to 7,689.08, 11,532.93 and 2,142.30

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Solution

The fourth proportional to 7,689.08, 11,532.93 and 2,142.30 is: 3,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.08 : 11,532.93 = 2,142.30 : x
  2. Step 2: Convert to fraction form
    7,689.08/11,532.93 = 2,142.30/x
  3. Step 3: Cross multiply
    7,689.08x = 11,532.93 × 2,142.30
  4. Step 4: Simplify right side
    7,689.08x = 24,706,995.94
  5. Step 5: Solve for x
    x = 24,706,995.94/7,689.08
  6. Step 6: Final answer
    x = 3,213.26

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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.