Home / 14,190.30-21,285.45-12,076.20

Finding the Fourth Proportional to 14,190.30, 21,285.45 and 12,076.20

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Solution

The fourth proportional to 14,190.30, 21,285.45 and 12,076.20 is: 18,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.30 : 21,285.45 = 12,076.20 : x
  2. Step 2: Convert to fraction form
    14,190.30/21,285.45 = 12,076.20/x
  3. Step 3: Cross multiply
    14,190.30x = 21,285.45 × 12,076.20
  4. Step 4: Simplify right side
    14,190.30x = 257,047,351.29
  5. Step 5: Solve for x
    x = 257,047,351.29/14,190.30
  6. Step 6: Final answer
    x = 18,114.30

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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.