Home / 14,272.41-19,651.17-12,960.21

Finding the Fourth Proportional to 14,272.41, 19,651.17 and 12,960.21

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Solution

The fourth proportional to 14,272.41, 19,651.17 and 12,960.21 is: 17,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.41 : 19,651.17 = 12,960.21 : x
  2. Step 2: Convert to fraction form
    14,272.41/19,651.17 = 12,960.21/x
  3. Step 3: Cross multiply
    14,272.41x = 19,651.17 × 12,960.21
  4. Step 4: Simplify right side
    14,272.41x = 254,683,289.95
  5. Step 5: Solve for x
    x = 254,683,289.95/14,272.41
  6. Step 6: Final answer
    x = 17,844.45

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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.