Home / 14,004.60-21,006.90-11,380.20

Finding the Fourth Proportional to 14,004.60, 21,006.90 and 11,380.20

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Solution

The fourth proportional to 14,004.60, 21,006.90 and 11,380.20 is: 17,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.60 : 21,006.90 = 11,380.20 : x
  2. Step 2: Convert to fraction form
    14,004.60/21,006.90 = 11,380.20/x
  3. Step 3: Cross multiply
    14,004.60x = 21,006.90 × 11,380.20
  4. Step 4: Simplify right side
    14,004.60x = 239,062,723.38
  5. Step 5: Solve for x
    x = 239,062,723.38/14,004.60
  6. Step 6: Final answer
    x = 17,070.30

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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.