Home / 13,938.10-19,262.23-11,416.22

Finding the Fourth Proportional to 13,938.10, 19,262.23 and 11,416.22

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Solution

The fourth proportional to 13,938.10, 19,262.23 and 11,416.22 is: 15,777.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.10 : 19,262.23 = 11,416.22 : x
  2. Step 2: Convert to fraction form
    13,938.10/19,262.23 = 11,416.22/x
  3. Step 3: Cross multiply
    13,938.10x = 19,262.23 × 11,416.22
  4. Step 4: Simplify right side
    13,938.10x = 219,901,780.69
  5. Step 5: Solve for x
    x = 219,901,780.69/13,938.10
  6. Step 6: Final answer
    x = 15,777.03

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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.