Home / 8,447.20-11,657.88-4,910.35

Finding the Fourth Proportional to 8,447.20, 11,657.88 and 4,910.35

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Solution

The fourth proportional to 8,447.20, 11,657.88 and 4,910.35 is: 6,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.20 : 11,657.88 = 4,910.35 : x
  2. Step 2: Convert to fraction form
    8,447.20/11,657.88 = 4,910.35/x
  3. Step 3: Cross multiply
    8,447.20x = 11,657.88 × 4,910.35
  4. Step 4: Simplify right side
    8,447.20x = 57,244,271.06
  5. Step 5: Solve for x
    x = 57,244,271.06/8,447.20
  6. Step 6: Final answer
    x = 6,776.72

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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.