Home / 11,771.98-17,642.95-5,518.20

Finding the Fourth Proportional to 11,771.98, 17,642.95 and 5,518.20

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Solution

The fourth proportional to 11,771.98, 17,642.95 and 5,518.20 is: 8,270.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.98 : 17,642.95 = 5,518.20 : x
  2. Step 2: Convert to fraction form
    11,771.98/17,642.95 = 5,518.20/x
  3. Step 3: Cross multiply
    11,771.98x = 17,642.95 × 5,518.20
  4. Step 4: Simplify right side
    11,771.98x = 97,357,326.69
  5. Step 5: Solve for x
    x = 97,357,326.69/11,771.98
  6. Step 6: Final answer
    x = 8,270.26

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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.