Home / 8,479.22-11,700.36-4,702.28

Finding the Fourth Proportional to 8,479.22, 11,700.36 and 4,702.28

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Solution

The fourth proportional to 8,479.22, 11,700.36 and 4,702.28 is: 6,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.22 : 11,700.36 = 4,702.28 : x
  2. Step 2: Convert to fraction form
    8,479.22/11,700.36 = 4,702.28/x
  3. Step 3: Cross multiply
    8,479.22x = 11,700.36 × 4,702.28
  4. Step 4: Simplify right side
    8,479.22x = 55,018,310.32
  5. Step 5: Solve for x
    x = 55,018,310.32/8,479.22
  6. Step 6: Final answer
    x = 6,488.61

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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.