Home / 10,813.98-16,219.58-3,419.19

Finding the Fourth Proportional to 10,813.98, 16,219.58 and 3,419.19

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Solution

The fourth proportional to 10,813.98, 16,219.58 and 3,419.19 is: 5,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.98 : 16,219.58 = 3,419.19 : x
  2. Step 2: Convert to fraction form
    10,813.98/16,219.58 = 3,419.19/x
  3. Step 3: Cross multiply
    10,813.98x = 16,219.58 × 3,419.19
  4. Step 4: Simplify right side
    10,813.98x = 55,457,808.64
  5. Step 5: Solve for x
    x = 55,457,808.64/10,813.98
  6. Step 6: Final answer
    x = 5,128.34

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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.