Home / 13,985.26-19,299.66-7,697.64

Finding the Fourth Proportional to 13,985.26, 19,299.66 and 7,697.64

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Solution

The fourth proportional to 13,985.26, 19,299.66 and 7,697.64 is: 10,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.26 : 19,299.66 = 7,697.64 : x
  2. Step 2: Convert to fraction form
    13,985.26/19,299.66 = 7,697.64/x
  3. Step 3: Cross multiply
    13,985.26x = 19,299.66 × 7,697.64
  4. Step 4: Simplify right side
    13,985.26x = 148,561,796.73
  5. Step 5: Solve for x
    x = 148,561,796.73/13,985.26
  6. Step 6: Final answer
    x = 10,622.74

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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.