Home / 14,136.30-21,180.15-11,657.70

Finding the Fourth Proportional to 14,136.30, 21,180.15 and 11,657.70

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Solution

The fourth proportional to 14,136.30, 21,180.15 and 11,657.70 is: 17,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.30 : 21,180.15 = 11,657.70 : x
  2. Step 2: Convert to fraction form
    14,136.30/21,180.15 = 11,657.70/x
  3. Step 3: Cross multiply
    14,136.30x = 21,180.15 × 11,657.70
  4. Step 4: Simplify right side
    14,136.30x = 246,911,834.66
  5. Step 5: Solve for x
    x = 246,911,834.66/14,136.30
  6. Step 6: Final answer
    x = 17,466.51

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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.