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Finding the Fourth Proportional to 8,930.56, 12,334.05 and 6,938.09

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Solution

The fourth proportional to 8,930.56, 12,334.05 and 6,938.09 is: 9,582.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.56 : 12,334.05 = 6,938.09 : x
  2. Step 2: Convert to fraction form
    8,930.56/12,334.05 = 6,938.09/x
  3. Step 3: Cross multiply
    8,930.56x = 12,334.05 × 6,938.09
  4. Step 4: Simplify right side
    8,930.56x = 85,574,714.27
  5. Step 5: Solve for x
    x = 85,574,714.27/8,930.56
  6. Step 6: Final answer
    x = 9,582.24

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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.