Home / 10,977.75-16,466.63-5,138.46

Finding the Fourth Proportional to 10,977.75, 16,466.63 and 5,138.46

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Solution

The fourth proportional to 10,977.75, 16,466.63 and 5,138.46 is: 7,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.75 : 16,466.63 = 5,138.46 : x
  2. Step 2: Convert to fraction form
    10,977.75/16,466.63 = 5,138.46/x
  3. Step 3: Cross multiply
    10,977.75x = 16,466.63 × 5,138.46
  4. Step 4: Simplify right side
    10,977.75x = 84,613,093.90
  5. Step 5: Solve for x
    x = 84,613,093.90/10,977.75
  6. Step 6: Final answer
    x = 7,707.69

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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.