Home / 13,126.88-19,699.43-5,335.70

Finding the Fourth Proportional to 13,126.88, 19,699.43 and 5,335.70

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Solution

The fourth proportional to 13,126.88, 19,699.43 and 5,335.70 is: 8,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.88 : 19,699.43 = 5,335.70 : x
  2. Step 2: Convert to fraction form
    13,126.88/19,699.43 = 5,335.70/x
  3. Step 3: Cross multiply
    13,126.88x = 19,699.43 × 5,335.70
  4. Step 4: Simplify right side
    13,126.88x = 105,110,163.49
  5. Step 5: Solve for x
    x = 105,110,163.49/13,126.88
  6. Step 6: Final answer
    x = 8,007.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.