Home / 11,785.60-16,264.65-6,480.61

Finding the Fourth Proportional to 11,785.60, 16,264.65 and 6,480.61

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Solution

The fourth proportional to 11,785.60, 16,264.65 and 6,480.61 is: 8,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.60 : 16,264.65 = 6,480.61 : x
  2. Step 2: Convert to fraction form
    11,785.60/16,264.65 = 6,480.61/x
  3. Step 3: Cross multiply
    11,785.60x = 16,264.65 × 6,480.61
  4. Step 4: Simplify right side
    11,785.60x = 105,404,800.62
  5. Step 5: Solve for x
    x = 105,404,800.62/11,785.60
  6. Step 6: Final answer
    x = 8,943.52

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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.