Home / 8,478.96-12,714.34-2,930.36

Finding the Fourth Proportional to 8,478.96, 12,714.34 and 2,930.36

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Solution

The fourth proportional to 8,478.96, 12,714.34 and 2,930.36 is: 4,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.96 : 12,714.34 = 2,930.36 : x
  2. Step 2: Convert to fraction form
    8,478.96/12,714.34 = 2,930.36/x
  3. Step 3: Cross multiply
    8,478.96x = 12,714.34 × 2,930.36
  4. Step 4: Simplify right side
    8,478.96x = 37,257,593.36
  5. Step 5: Solve for x
    x = 37,257,593.36/8,478.96
  6. Step 6: Final answer
    x = 4,394.12

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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.