Home / 14,164.88-21,251.11-12,615.50

Finding the Fourth Proportional to 14,164.88, 21,251.11 and 12,615.50

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Solution

The fourth proportional to 14,164.88, 21,251.11 and 12,615.50 is: 18,926.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,164.88 : 21,251.11 = 12,615.50 : x
  2. Step 2: Convert to fraction form
    14,164.88/21,251.11 = 12,615.50/x
  3. Step 3: Cross multiply
    14,164.88x = 21,251.11 × 12,615.50
  4. Step 4: Simplify right side
    14,164.88x = 268,093,303.91
  5. Step 5: Solve for x
    x = 268,093,303.91/14,164.88
  6. Step 6: Final answer
    x = 18,926.63

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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.