Home / 14,276.90-21,388.55-11,951.80

Finding the Fourth Proportional to 14,276.90, 21,388.55 and 11,951.80

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Solution

The fourth proportional to 14,276.90, 21,388.55 and 11,951.80 is: 17,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.90 : 21,388.55 = 11,951.80 : x
  2. Step 2: Convert to fraction form
    14,276.90/21,388.55 = 11,951.80/x
  3. Step 3: Cross multiply
    14,276.90x = 21,388.55 × 11,951.80
  4. Step 4: Simplify right side
    14,276.90x = 255,631,558.66
  5. Step 5: Solve for x
    x = 255,631,558.66/14,276.90
  6. Step 6: Final answer
    x = 17,905.25

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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.