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Finding the Fourth Proportional to 8,798.70, 12,141.72 and 6,699.18

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Solution

The fourth proportional to 8,798.70, 12,141.72 and 6,699.18 is: 9,244.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.70 : 12,141.72 = 6,699.18 : x
  2. Step 2: Convert to fraction form
    8,798.70/12,141.72 = 6,699.18/x
  3. Step 3: Cross multiply
    8,798.70x = 12,141.72 × 6,699.18
  4. Step 4: Simplify right side
    8,798.70x = 81,339,567.79
  5. Step 5: Solve for x
    x = 81,339,567.79/8,798.70
  6. Step 6: Final answer
    x = 9,244.50

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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.