Home / 12,206.08-16,841.36-6,900.78

Finding the Fourth Proportional to 12,206.08, 16,841.36 and 6,900.78

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Solution

The fourth proportional to 12,206.08, 16,841.36 and 6,900.78 is: 9,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.08 : 16,841.36 = 6,900.78 : x
  2. Step 2: Convert to fraction form
    12,206.08/16,841.36 = 6,900.78/x
  3. Step 3: Cross multiply
    12,206.08x = 16,841.36 × 6,900.78
  4. Step 4: Simplify right side
    12,206.08x = 116,218,537.51
  5. Step 5: Solve for x
    x = 116,218,537.51/12,206.08
  6. Step 6: Final answer
    x = 9,521.37

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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.