Home / 13,829.05-20,747.73-6,437.89

Finding the Fourth Proportional to 13,829.05, 20,747.73 and 6,437.89

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Solution

The fourth proportional to 13,829.05, 20,747.73 and 6,437.89 is: 9,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.05 : 20,747.73 = 6,437.89 : x
  2. Step 2: Convert to fraction form
    13,829.05/20,747.73 = 6,437.89/x
  3. Step 3: Cross multiply
    13,829.05x = 20,747.73 × 6,437.89
  4. Step 4: Simplify right side
    13,829.05x = 133,571,603.49
  5. Step 5: Solve for x
    x = 133,571,603.49/13,829.05
  6. Step 6: Final answer
    x = 9,658.77

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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.