Home / 8,784.09-12,121.88-4,805.17

Finding the Fourth Proportional to 8,784.09, 12,121.88 and 4,805.17

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Solution

The fourth proportional to 8,784.09, 12,121.88 and 4,805.17 is: 6,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.09 : 12,121.88 = 4,805.17 : x
  2. Step 2: Convert to fraction form
    8,784.09/12,121.88 = 4,805.17/x
  3. Step 3: Cross multiply
    8,784.09x = 12,121.88 × 4,805.17
  4. Step 4: Simplify right side
    8,784.09x = 58,247,639.79
  5. Step 5: Solve for x
    x = 58,247,639.79/8,784.09
  6. Step 6: Final answer
    x = 6,631.04

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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.