Home / 27,136.80-40,703.76-8,667.36

Finding the Fourth Proportional to 27,136.80, 40,703.76 and 8,667.36

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Solution

The fourth proportional to 27,136.80, 40,703.76 and 8,667.36 is: 13,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.80 : 40,703.76 = 8,667.36 : x
  2. Step 2: Convert to fraction form
    27,136.80/40,703.76 = 8,667.36/x
  3. Step 3: Cross multiply
    27,136.80x = 40,703.76 × 8,667.36
  4. Step 4: Simplify right side
    27,136.80x = 352,794,141.27
  5. Step 5: Solve for x
    x = 352,794,141.27/27,136.80
  6. Step 6: Final answer
    x = 13,000.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.