Home / 19,858.70-27,417.84-12,313.05

Finding the Fourth Proportional to 19,858.70, 27,417.84 and 12,313.05

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Solution

The fourth proportional to 19,858.70, 27,417.84 and 12,313.05 is: 16,999.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.70 : 27,417.84 = 12,313.05 : x
  2. Step 2: Convert to fraction form
    19,858.70/27,417.84 = 12,313.05/x
  3. Step 3: Cross multiply
    19,858.70x = 27,417.84 × 12,313.05
  4. Step 4: Simplify right side
    19,858.70x = 337,597,234.81
  5. Step 5: Solve for x
    x = 337,597,234.81/19,858.70
  6. Step 6: Final answer
    x = 16,999.97

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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.