Home / 19,715.88-27,199.46-11,330.60

Finding the Fourth Proportional to 19,715.88, 27,199.46 and 11,330.60

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Solution

The fourth proportional to 19,715.88, 27,199.46 and 11,330.60 is: 15,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.88 : 27,199.46 = 11,330.60 : x
  2. Step 2: Convert to fraction form
    19,715.88/27,199.46 = 11,330.60/x
  3. Step 3: Cross multiply
    19,715.88x = 27,199.46 × 11,330.60
  4. Step 4: Simplify right side
    19,715.88x = 308,186,201.48
  5. Step 5: Solve for x
    x = 308,186,201.48/19,715.88
  6. Step 6: Final answer
    x = 15,631.37

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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.