Home / 13,220.46-18,144.63-12,094.20

Finding the Fourth Proportional to 13,220.46, 18,144.63 and 12,094.20

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Solution

The fourth proportional to 13,220.46, 18,144.63 and 12,094.20 is: 16,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.46 : 18,144.63 = 12,094.20 : x
  2. Step 2: Convert to fraction form
    13,220.46/18,144.63 = 12,094.20/x
  3. Step 3: Cross multiply
    13,220.46x = 18,144.63 × 12,094.20
  4. Step 4: Simplify right side
    13,220.46x = 219,444,784.15
  5. Step 5: Solve for x
    x = 219,444,784.15/13,220.46
  6. Step 6: Final answer
    x = 16,598.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.