Home / 14,276.66-21,414.98-6,480

Finding the Fourth Proportional to 14,276.66, 21,414.98 and 6,480

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Solution

The fourth proportional to 14,276.66, 21,414.98 and 6,480 is: 9,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.66 : 21,414.98 = 6,480 : x
  2. Step 2: Convert to fraction form
    14,276.66/21,414.98 = 6,480/x
  3. Step 3: Cross multiply
    14,276.66x = 21,414.98 × 6,480
  4. Step 4: Simplify right side
    14,276.66x = 138,769,086.60
  5. Step 5: Solve for x
    x = 138,769,086.60/14,276.66
  6. Step 6: Final answer
    x = 9,720

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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.