Home / 13,130.39-19,699.10-5,735.45

Finding the Fourth Proportional to 13,130.39, 19,699.10 and 5,735.45

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Solution

The fourth proportional to 13,130.39, 19,699.10 and 5,735.45 is: 8,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.39 : 19,699.10 = 5,735.45 : x
  2. Step 2: Convert to fraction form
    13,130.39/19,699.10 = 5,735.45/x
  3. Step 3: Cross multiply
    13,130.39x = 19,699.10 × 5,735.45
  4. Step 4: Simplify right side
    13,130.39x = 112,983,245.17
  5. Step 5: Solve for x
    x = 112,983,245.17/13,130.39
  6. Step 6: Final answer
    x = 8,604.71

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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.