Home / 13,945.24-21,000.31-10,076.68

Finding the Fourth Proportional to 13,945.24, 21,000.31 and 10,076.68

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Solution

The fourth proportional to 13,945.24, 21,000.31 and 10,076.68 is: 15,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.24 : 21,000.31 = 10,076.68 : x
  2. Step 2: Convert to fraction form
    13,945.24/21,000.31 = 10,076.68/x
  3. Step 3: Cross multiply
    13,945.24x = 21,000.31 × 10,076.68
  4. Step 4: Simplify right side
    13,945.24x = 211,613,403.77
  5. Step 5: Solve for x
    x = 211,613,403.77/13,945.24
  6. Step 6: Final answer
    x = 15,174.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.