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Finding the Fourth Proportional to 8,433.81, 12,631.04 and 6,666.96

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Solution

The fourth proportional to 8,433.81, 12,631.04 and 6,666.96 is: 9,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.81 : 12,631.04 = 6,666.96 : x
  2. Step 2: Convert to fraction form
    8,433.81/12,631.04 = 6,666.96/x
  3. Step 3: Cross multiply
    8,433.81x = 12,631.04 × 6,666.96
  4. Step 4: Simplify right side
    8,433.81x = 84,210,582.74
  5. Step 5: Solve for x
    x = 84,210,582.74/8,433.81
  6. Step 6: Final answer
    x = 9,984.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.