Home / 12,126.25-16,734.06-6,821.07

Finding the Fourth Proportional to 12,126.25, 16,734.06 and 6,821.07

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Solution

The fourth proportional to 12,126.25, 16,734.06 and 6,821.07 is: 9,412.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.25 : 16,734.06 = 6,821.07 : x
  2. Step 2: Convert to fraction form
    12,126.25/16,734.06 = 6,821.07/x
  3. Step 3: Cross multiply
    12,126.25x = 16,734.06 × 6,821.07
  4. Step 4: Simplify right side
    12,126.25x = 114,144,282.98
  5. Step 5: Solve for x
    x = 114,144,282.98/12,126.25
  6. Step 6: Final answer
    x = 9,412.99

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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.