Home / 14,109.79-21,165.36-11,640.03

Finding the Fourth Proportional to 14,109.79, 21,165.36 and 11,640.03

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Solution

The fourth proportional to 14,109.79, 21,165.36 and 11,640.03 is: 17,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.79 : 21,165.36 = 11,640.03 : x
  2. Step 2: Convert to fraction form
    14,109.79/21,165.36 = 11,640.03/x
  3. Step 3: Cross multiply
    14,109.79x = 21,165.36 × 11,640.03
  4. Step 4: Simplify right side
    14,109.79x = 246,365,425.36
  5. Step 5: Solve for x
    x = 246,365,425.36/14,109.79
  6. Step 6: Final answer
    x = 17,460.60

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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.