Home / 12,569.93-18,857.21-4,136.91

Finding the Fourth Proportional to 12,569.93, 18,857.21 and 4,136.91

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Solution

The fourth proportional to 12,569.93, 18,857.21 and 4,136.91 is: 6,206.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569.93 : 18,857.21 = 4,136.91 : x
  2. Step 2: Convert to fraction form
    12,569.93/18,857.21 = 4,136.91/x
  3. Step 3: Cross multiply
    12,569.93x = 18,857.21 × 4,136.91
  4. Step 4: Simplify right side
    12,569.93x = 78,010,590.96
  5. Step 5: Solve for x
    x = 78,010,590.96/12,569.93
  6. Step 6: Final answer
    x = 6,206.13

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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.