Home / 14,591.48-21,867.06-12,638.84

Finding the Fourth Proportional to 14,591.48, 21,867.06 and 12,638.84

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Solution

The fourth proportional to 14,591.48, 21,867.06 and 12,638.84 is: 18,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,591.48 : 21,867.06 = 12,638.84 : x
  2. Step 2: Convert to fraction form
    14,591.48/21,867.06 = 12,638.84/x
  3. Step 3: Cross multiply
    14,591.48x = 21,867.06 × 12,638.84
  4. Step 4: Simplify right side
    14,591.48x = 276,374,272.61
  5. Step 5: Solve for x
    x = 276,374,272.61/14,591.48
  6. Step 6: Final answer
    x = 18,940.80

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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.