Home / 8,336.61-11,505.33-4,979.40

Finding the Fourth Proportional to 8,336.61, 11,505.33 and 4,979.40

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Solution

The fourth proportional to 8,336.61, 11,505.33 and 4,979.40 is: 6,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.61 : 11,505.33 = 4,979.40 : x
  2. Step 2: Convert to fraction form
    8,336.61/11,505.33 = 4,979.40/x
  3. Step 3: Cross multiply
    8,336.61x = 11,505.33 × 4,979.40
  4. Step 4: Simplify right side
    8,336.61x = 57,289,640.20
  5. Step 5: Solve for x
    x = 57,289,640.20/8,336.61
  6. Step 6: Final answer
    x = 6,872.05

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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.