Home / 14,049.12-21,099.18-12,185.30

Finding the Fourth Proportional to 14,049.12, 21,099.18 and 12,185.30

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Solution

The fourth proportional to 14,049.12, 21,099.18 and 12,185.30 is: 18,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.12 : 21,099.18 = 12,185.30 : x
  2. Step 2: Convert to fraction form
    14,049.12/21,099.18 = 12,185.30/x
  3. Step 3: Cross multiply
    14,049.12x = 21,099.18 × 12,185.30
  4. Step 4: Simplify right side
    14,049.12x = 257,099,838.05
  5. Step 5: Solve for x
    x = 257,099,838.05/14,049.12
  6. Step 6: Final answer
    x = 18,300.07

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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.