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Finding the Fourth Proportional to 8,622.89, 11,899.83 and 4,846.40

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Solution

The fourth proportional to 8,622.89, 11,899.83 and 4,846.40 is: 6,688.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.89 : 11,899.83 = 4,846.40 : x
  2. Step 2: Convert to fraction form
    8,622.89/11,899.83 = 4,846.40/x
  3. Step 3: Cross multiply
    8,622.89x = 11,899.83 × 4,846.40
  4. Step 4: Simplify right side
    8,622.89x = 57,671,336.11
  5. Step 5: Solve for x
    x = 57,671,336.11/8,622.89
  6. Step 6: Final answer
    x = 6,688.17

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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.