Home / 12,893.93-19,341.16-4,128.82

Finding the Fourth Proportional to 12,893.93, 19,341.16 and 4,128.82

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Solution

The fourth proportional to 12,893.93, 19,341.16 and 4,128.82 is: 6,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,893.93 : 19,341.16 = 4,128.82 : x
  2. Step 2: Convert to fraction form
    12,893.93/19,341.16 = 4,128.82/x
  3. Step 3: Cross multiply
    12,893.93x = 19,341.16 × 4,128.82
  4. Step 4: Simplify right side
    12,893.93x = 79,856,088.77
  5. Step 5: Solve for x
    x = 79,856,088.77/12,893.93
  6. Step 6: Final answer
    x = 6,193.31

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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.