Home / 12,089.90-18,136.68-4,296.86

Finding the Fourth Proportional to 12,089.90, 18,136.68 and 4,296.86

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Solution

The fourth proportional to 12,089.90, 18,136.68 and 4,296.86 is: 6,445.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.90 : 18,136.68 = 4,296.86 : x
  2. Step 2: Convert to fraction form
    12,089.90/18,136.68 = 4,296.86/x
  3. Step 3: Cross multiply
    12,089.90x = 18,136.68 × 4,296.86
  4. Step 4: Simplify right side
    12,089.90x = 77,930,774.82
  5. Step 5: Solve for x
    x = 77,930,774.82/12,089.90
  6. Step 6: Final answer
    x = 6,445.94

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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.