Home / 12,209.32-16,848.96-6,620.32

Finding the Fourth Proportional to 12,209.32, 16,848.96 and 6,620.32

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Solution

The fourth proportional to 12,209.32, 16,848.96 and 6,620.32 is: 9,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.32 : 16,848.96 = 6,620.32 : x
  2. Step 2: Convert to fraction form
    12,209.32/16,848.96 = 6,620.32/x
  3. Step 3: Cross multiply
    12,209.32x = 16,848.96 × 6,620.32
  4. Step 4: Simplify right side
    12,209.32x = 111,545,506.87
  5. Step 5: Solve for x
    x = 111,545,506.87/12,209.32
  6. Step 6: Final answer
    x = 9,136.09

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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.