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Finding the Fourth Proportional to 8,950.59, 13,313.21 and 8,920.62

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Solution

The fourth proportional to 8,950.59, 13,313.21 and 8,920.62 is: 13,268.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.59 : 13,313.21 = 8,920.62 : x
  2. Step 2: Convert to fraction form
    8,950.59/13,313.21 = 8,920.62/x
  3. Step 3: Cross multiply
    8,950.59x = 13,313.21 × 8,920.62
  4. Step 4: Simplify right side
    8,950.59x = 118,762,042.79
  5. Step 5: Solve for x
    x = 118,762,042.79/8,950.59
  6. Step 6: Final answer
    x = 13,268.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.