Home / 10,977.37-15,147.14-6,668.22

Finding the Fourth Proportional to 10,977.37, 15,147.14 and 6,668.22

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Solution

The fourth proportional to 10,977.37, 15,147.14 and 6,668.22 is: 9,201.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.37 : 15,147.14 = 6,668.22 : x
  2. Step 2: Convert to fraction form
    10,977.37/15,147.14 = 6,668.22/x
  3. Step 3: Cross multiply
    10,977.37x = 15,147.14 × 6,668.22
  4. Step 4: Simplify right side
    10,977.37x = 101,004,461.89
  5. Step 5: Solve for x
    x = 101,004,461.89/10,977.37
  6. Step 6: Final answer
    x = 9,201.15

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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.