Home / 9,378.42-14,064.78-3,136.82

Finding the Fourth Proportional to 9,378.42, 14,064.78 and 3,136.82

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Solution

The fourth proportional to 9,378.42, 14,064.78 and 3,136.82 is: 4,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.42 : 14,064.78 = 3,136.82 : x
  2. Step 2: Convert to fraction form
    9,378.42/14,064.78 = 3,136.82/x
  3. Step 3: Cross multiply
    9,378.42x = 14,064.78 × 3,136.82
  4. Step 4: Simplify right side
    9,378.42x = 44,118,683.20
  5. Step 5: Solve for x
    x = 44,118,683.20/9,378.42
  6. Step 6: Final answer
    x = 4,704.28

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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.