Home / 8,838.66-12,192.74-5,480.40

Finding the Fourth Proportional to 8,838.66, 12,192.74 and 5,480.40

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Solution

The fourth proportional to 8,838.66, 12,192.74 and 5,480.40 is: 7,560.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.66 : 12,192.74 = 5,480.40 : x
  2. Step 2: Convert to fraction form
    8,838.66/12,192.74 = 5,480.40/x
  3. Step 3: Cross multiply
    8,838.66x = 12,192.74 × 5,480.40
  4. Step 4: Simplify right side
    8,838.66x = 66,821,092.30
  5. Step 5: Solve for x
    x = 66,821,092.30/8,838.66
  6. Step 6: Final answer
    x = 7,560.09

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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.