Home / 11,700.58-17,555.75-5,131.48

Finding the Fourth Proportional to 11,700.58, 17,555.75 and 5,131.48

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Solution

The fourth proportional to 11,700.58, 17,555.75 and 5,131.48 is: 7,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.58 : 17,555.75 = 5,131.48 : x
  2. Step 2: Convert to fraction form
    11,700.58/17,555.75 = 5,131.48/x
  3. Step 3: Cross multiply
    11,700.58x = 17,555.75 × 5,131.48
  4. Step 4: Simplify right side
    11,700.58x = 90,086,980.01
  5. Step 5: Solve for x
    x = 90,086,980.01/11,700.58
  6. Step 6: Final answer
    x = 7,699.36

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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.