Home / 13,281.44-19,895.76-12,192.80

Finding the Fourth Proportional to 13,281.44, 19,895.76 and 12,192.80

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Solution

The fourth proportional to 13,281.44, 19,895.76 and 12,192.80 is: 18,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.44 : 19,895.76 = 12,192.80 : x
  2. Step 2: Convert to fraction form
    13,281.44/19,895.76 = 12,192.80/x
  3. Step 3: Cross multiply
    13,281.44x = 19,895.76 × 12,192.80
  4. Step 4: Simplify right side
    13,281.44x = 242,585,022.53
  5. Step 5: Solve for x
    x = 242,585,022.53/13,281.44
  6. Step 6: Final answer
    x = 18,264.96

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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.