Home / 10,945.21-15,098.97-6,466.79

Finding the Fourth Proportional to 10,945.21, 15,098.97 and 6,466.79

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Solution

The fourth proportional to 10,945.21, 15,098.97 and 6,466.79 is: 8,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.21 : 15,098.97 = 6,466.79 : x
  2. Step 2: Convert to fraction form
    10,945.21/15,098.97 = 6,466.79/x
  3. Step 3: Cross multiply
    10,945.21x = 15,098.97 × 6,466.79
  4. Step 4: Simplify right side
    10,945.21x = 97,641,930.20
  5. Step 5: Solve for x
    x = 97,641,930.20/10,945.21
  6. Step 6: Final answer
    x = 8,920.97

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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.