Home / 15,717.06-21,703.50-11,731.14

Finding the Fourth Proportional to 15,717.06, 21,703.50 and 11,731.14

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Solution

The fourth proportional to 15,717.06, 21,703.50 and 11,731.14 is: 16,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.06 : 21,703.50 = 11,731.14 : x
  2. Step 2: Convert to fraction form
    15,717.06/21,703.50 = 11,731.14/x
  3. Step 3: Cross multiply
    15,717.06x = 21,703.50 × 11,731.14
  4. Step 4: Simplify right side
    15,717.06x = 254,606,796.99
  5. Step 5: Solve for x
    x = 254,606,796.99/15,717.06
  6. Step 6: Final answer
    x = 16,199.39

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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.