Home / 8,113.90-12,162.45-4,408.30

Finding the Fourth Proportional to 8,113.90, 12,162.45 and 4,408.30

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Solution

The fourth proportional to 8,113.90, 12,162.45 and 4,408.30 is: 6,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.90 : 12,162.45 = 4,408.30 : x
  2. Step 2: Convert to fraction form
    8,113.90/12,162.45 = 4,408.30/x
  3. Step 3: Cross multiply
    8,113.90x = 12,162.45 × 4,408.30
  4. Step 4: Simplify right side
    8,113.90x = 53,615,728.34
  5. Step 5: Solve for x
    x = 53,615,728.34/8,113.90
  6. Step 6: Final answer
    x = 6,607.89

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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.