Home / 9,136.90-12,600.26-6,299.74

Finding the Fourth Proportional to 9,136.90, 12,600.26 and 6,299.74

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Solution

The fourth proportional to 9,136.90, 12,600.26 and 6,299.74 is: 8,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.90 : 12,600.26 = 6,299.74 : x
  2. Step 2: Convert to fraction form
    9,136.90/12,600.26 = 6,299.74/x
  3. Step 3: Cross multiply
    9,136.90x = 12,600.26 × 6,299.74
  4. Step 4: Simplify right side
    9,136.90x = 79,378,330.43
  5. Step 5: Solve for x
    x = 79,378,330.43/9,136.90
  6. Step 6: Final answer
    x = 8,687.67

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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.