Home / 12,660.91-17,483.70-8,192.37

Finding the Fourth Proportional to 12,660.91, 17,483.70 and 8,192.37

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Solution

The fourth proportional to 12,660.91, 17,483.70 and 8,192.37 is: 11,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.91 : 17,483.70 = 8,192.37 : x
  2. Step 2: Convert to fraction form
    12,660.91/17,483.70 = 8,192.37/x
  3. Step 3: Cross multiply
    12,660.91x = 17,483.70 × 8,192.37
  4. Step 4: Simplify right side
    12,660.91x = 143,232,842.05
  5. Step 5: Solve for x
    x = 143,232,842.05/12,660.91
  6. Step 6: Final answer
    x = 11,313.00

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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.