Home / 8,328.91-12,493.36-2,172.91

Finding the Fourth Proportional to 8,328.91, 12,493.36 and 2,172.91

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Solution

The fourth proportional to 8,328.91, 12,493.36 and 2,172.91 is: 3,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.91 : 12,493.36 = 2,172.91 : x
  2. Step 2: Convert to fraction form
    8,328.91/12,493.36 = 2,172.91/x
  3. Step 3: Cross multiply
    8,328.91x = 12,493.36 × 2,172.91
  4. Step 4: Simplify right side
    8,328.91x = 27,146,915.64
  5. Step 5: Solve for x
    x = 27,146,915.64/8,328.91
  6. Step 6: Final answer
    x = 3,259.36

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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.