Home / 8,749.35-12,074.09-4,972.35

Finding the Fourth Proportional to 8,749.35, 12,074.09 and 4,972.35

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Solution

The fourth proportional to 8,749.35, 12,074.09 and 4,972.35 is: 6,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.35 : 12,074.09 = 4,972.35 : x
  2. Step 2: Convert to fraction form
    8,749.35/12,074.09 = 4,972.35/x
  3. Step 3: Cross multiply
    8,749.35x = 12,074.09 × 4,972.35
  4. Step 4: Simplify right side
    8,749.35x = 60,036,576.55
  5. Step 5: Solve for x
    x = 60,036,576.55/8,749.35
  6. Step 6: Final answer
    x = 6,861.83

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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.