Home / 12,153.84-16,767.66-7,675.89

Finding the Fourth Proportional to 12,153.84, 16,767.66 and 7,675.89

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Solution

The fourth proportional to 12,153.84, 16,767.66 and 7,675.89 is: 10,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.84 : 16,767.66 = 7,675.89 : x
  2. Step 2: Convert to fraction form
    12,153.84/16,767.66 = 7,675.89/x
  3. Step 3: Cross multiply
    12,153.84x = 16,767.66 × 7,675.89
  4. Step 4: Simplify right side
    12,153.84x = 128,706,713.72
  5. Step 5: Solve for x
    x = 128,706,713.72/12,153.84
  6. Step 6: Final answer
    x = 10,589.80

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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.