Home / 12,758.74-19,136.89-4,438.42

Finding the Fourth Proportional to 12,758.74, 19,136.89 and 4,438.42

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Solution

The fourth proportional to 12,758.74, 19,136.89 and 4,438.42 is: 6,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.74 : 19,136.89 = 4,438.42 : x
  2. Step 2: Convert to fraction form
    12,758.74/19,136.89 = 4,438.42/x
  3. Step 3: Cross multiply
    12,758.74x = 19,136.89 × 4,438.42
  4. Step 4: Simplify right side
    12,758.74x = 84,937,555.31
  5. Step 5: Solve for x
    x = 84,937,555.31/12,758.74
  6. Step 6: Final answer
    x = 6,657.21

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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.