Home / 12,239.72-16,890.83-6,934.89

Finding the Fourth Proportional to 12,239.72, 16,890.83 and 6,934.89

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Solution

The fourth proportional to 12,239.72, 16,890.83 and 6,934.89 is: 9,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.72 : 16,890.83 = 6,934.89 : x
  2. Step 2: Convert to fraction form
    12,239.72/16,890.83 = 6,934.89/x
  3. Step 3: Cross multiply
    12,239.72x = 16,890.83 × 6,934.89
  4. Step 4: Simplify right side
    12,239.72x = 117,136,102.73
  5. Step 5: Solve for x
    x = 117,136,102.73/12,239.72
  6. Step 6: Final answer
    x = 9,570.16

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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.