Home / 13,840.31-19,101.03-8,176.89

Finding the Fourth Proportional to 13,840.31, 19,101.03 and 8,176.89

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Solution

The fourth proportional to 13,840.31, 19,101.03 and 8,176.89 is: 11,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.31 : 19,101.03 = 8,176.89 : x
  2. Step 2: Convert to fraction form
    13,840.31/19,101.03 = 8,176.89/x
  3. Step 3: Cross multiply
    13,840.31x = 19,101.03 × 8,176.89
  4. Step 4: Simplify right side
    13,840.31x = 156,187,021.20
  5. Step 5: Solve for x
    x = 156,187,021.20/13,840.31
  6. Step 6: Final answer
    x = 11,284.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.