Home / 11,875.92-16,389.99-6,840.33

Finding the Fourth Proportional to 11,875.92, 16,389.99 and 6,840.33

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Solution

The fourth proportional to 11,875.92, 16,389.99 and 6,840.33 is: 9,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.92 : 16,389.99 = 6,840.33 : x
  2. Step 2: Convert to fraction form
    11,875.92/16,389.99 = 6,840.33/x
  3. Step 3: Cross multiply
    11,875.92x = 16,389.99 × 6,840.33
  4. Step 4: Simplify right side
    11,875.92x = 112,112,940.30
  5. Step 5: Solve for x
    x = 112,112,940.30/11,875.92
  6. Step 6: Final answer
    x = 9,440.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.