Home / 12,790.98-19,188.90-4,473.36

Finding the Fourth Proportional to 12,790.98, 19,188.90 and 4,473.36

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Solution

The fourth proportional to 12,790.98, 19,188.90 and 4,473.36 is: 6,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.98 : 19,188.90 = 4,473.36 : x
  2. Step 2: Convert to fraction form
    12,790.98/19,188.90 = 4,473.36/x
  3. Step 3: Cross multiply
    12,790.98x = 19,188.90 × 4,473.36
  4. Step 4: Simplify right side
    12,790.98x = 85,838,857.70
  5. Step 5: Solve for x
    x = 85,838,857.70/12,790.98
  6. Step 6: Final answer
    x = 6,710.89

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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.