Home / 8,754.21-13,136.76-6,377.90

Finding the Fourth Proportional to 8,754.21, 13,136.76 and 6,377.90

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Solution

The fourth proportional to 8,754.21, 13,136.76 and 6,377.90 is: 9,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.21 : 13,136.76 = 6,377.90 : x
  2. Step 2: Convert to fraction form
    8,754.21/13,136.76 = 6,377.90/x
  3. Step 3: Cross multiply
    8,754.21x = 13,136.76 × 6,377.90
  4. Step 4: Simplify right side
    8,754.21x = 83,784,875.92
  5. Step 5: Solve for x
    x = 83,784,875.92/8,754.21
  6. Step 6: Final answer
    x = 9,570.81

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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.