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Finding the Fourth Proportional to 8,485.62, 11,709.84 and 4,708.95

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Solution

The fourth proportional to 8,485.62, 11,709.84 and 4,708.95 is: 6,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.62 : 11,709.84 = 4,708.95 : x
  2. Step 2: Convert to fraction form
    8,485.62/11,709.84 = 4,708.95/x
  3. Step 3: Cross multiply
    8,485.62x = 11,709.84 × 4,708.95
  4. Step 4: Simplify right side
    8,485.62x = 55,141,024.81
  5. Step 5: Solve for x
    x = 55,141,024.81/8,485.62
  6. Step 6: Final answer
    x = 6,498.18

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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.