Home / 11,823.96-16,317.90-6,789

Finding the Fourth Proportional to 11,823.96, 16,317.90 and 6,789

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Solution

The fourth proportional to 11,823.96, 16,317.90 and 6,789 is: 9,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.96 : 16,317.90 = 6,789 : x
  2. Step 2: Convert to fraction form
    11,823.96/16,317.90 = 6,789/x
  3. Step 3: Cross multiply
    11,823.96x = 16,317.90 × 6,789
  4. Step 4: Simplify right side
    11,823.96x = 110,782,223.10
  5. Step 5: Solve for x
    x = 110,782,223.10/11,823.96
  6. Step 6: Final answer
    x = 9,369.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.