Home / 12,911.99-19,336.82-7,348.46

Finding the Fourth Proportional to 12,911.99, 19,336.82 and 7,348.46

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Solution

The fourth proportional to 12,911.99, 19,336.82 and 7,348.46 is: 11,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.99 : 19,336.82 = 7,348.46 : x
  2. Step 2: Convert to fraction form
    12,911.99/19,336.82 = 7,348.46/x
  3. Step 3: Cross multiply
    12,911.99x = 19,336.82 × 7,348.46
  4. Step 4: Simplify right side
    12,911.99x = 142,095,714.87
  5. Step 5: Solve for x
    x = 142,095,714.87/12,911.99
  6. Step 6: Final answer
    x = 11,004.95

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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.