Home / 19,813.91-27,343.05-10,861.79

Finding the Fourth Proportional to 19,813.91, 27,343.05 and 10,861.79

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Solution

The fourth proportional to 19,813.91, 27,343.05 and 10,861.79 is: 14,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.91 : 27,343.05 = 10,861.79 : x
  2. Step 2: Convert to fraction form
    19,813.91/27,343.05 = 10,861.79/x
  3. Step 3: Cross multiply
    19,813.91x = 27,343.05 × 10,861.79
  4. Step 4: Simplify right side
    19,813.91x = 296,994,467.06
  5. Step 5: Solve for x
    x = 296,994,467.06/19,813.91
  6. Step 6: Final answer
    x = 14,989.19

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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.