Home / 12,389.44-18,586.32-6,149.84

Finding the Fourth Proportional to 12,389.44, 18,586.32 and 6,149.84

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Solution

The fourth proportional to 12,389.44, 18,586.32 and 6,149.84 is: 9,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.44 : 18,586.32 = 6,149.84 : x
  2. Step 2: Convert to fraction form
    12,389.44/18,586.32 = 6,149.84/x
  3. Step 3: Cross multiply
    12,389.44x = 18,586.32 × 6,149.84
  4. Step 4: Simplify right side
    12,389.44x = 114,302,894.19
  5. Step 5: Solve for x
    x = 114,302,894.19/12,389.44
  6. Step 6: Final answer
    x = 9,225.83

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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.