Home / 12,274.08-18,388.08-6,122.40

Finding the Fourth Proportional to 12,274.08, 18,388.08 and 6,122.40

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Solution

The fourth proportional to 12,274.08, 18,388.08 and 6,122.40 is: 9,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.08 : 18,388.08 = 6,122.40 : x
  2. Step 2: Convert to fraction form
    12,274.08/18,388.08 = 6,122.40/x
  3. Step 3: Cross multiply
    12,274.08x = 18,388.08 × 6,122.40
  4. Step 4: Simplify right side
    12,274.08x = 112,579,180.99
  5. Step 5: Solve for x
    x = 112,579,180.99/12,274.08
  6. Step 6: Final answer
    x = 9,172.11

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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.