Home / 6,827.49-9,419.90-4,172.31

Finding the Fourth Proportional to 6,827.49, 9,419.90 and 4,172.31

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Solution

The fourth proportional to 6,827.49, 9,419.90 and 4,172.31 is: 5,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,827.49 : 9,419.90 = 4,172.31 : x
  2. Step 2: Convert to fraction form
    6,827.49/9,419.90 = 4,172.31/x
  3. Step 3: Cross multiply
    6,827.49x = 9,419.90 × 4,172.31
  4. Step 4: Simplify right side
    6,827.49x = 39,302,722.11
  5. Step 5: Solve for x
    x = 39,302,722.11/6,827.49
  6. Step 6: Final answer
    x = 5,756.54

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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.