Home / 14,125.60-21,164.10-11,938.60

Finding the Fourth Proportional to 14,125.60, 21,164.10 and 11,938.60

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Solution

The fourth proportional to 14,125.60, 21,164.10 and 11,938.60 is: 17,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.60 : 21,164.10 = 11,938.60 : x
  2. Step 2: Convert to fraction form
    14,125.60/21,164.10 = 11,938.60/x
  3. Step 3: Cross multiply
    14,125.60x = 21,164.10 × 11,938.60
  4. Step 4: Simplify right side
    14,125.60x = 252,669,724.26
  5. Step 5: Solve for x
    x = 252,669,724.26/14,125.60
  6. Step 6: Final answer
    x = 17,887.36

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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.