Home / 11,147.46-15,383.58-7,610.58

Finding the Fourth Proportional to 11,147.46, 15,383.58 and 7,610.58

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Solution

The fourth proportional to 11,147.46, 15,383.58 and 7,610.58 is: 10,502.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.46 : 15,383.58 = 7,610.58 : x
  2. Step 2: Convert to fraction form
    11,147.46/15,383.58 = 7,610.58/x
  3. Step 3: Cross multiply
    11,147.46x = 15,383.58 × 7,610.58
  4. Step 4: Simplify right side
    11,147.46x = 117,077,966.28
  5. Step 5: Solve for x
    x = 117,077,966.28/11,147.46
  6. Step 6: Final answer
    x = 10,502.66

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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.