Home / 11,728.93-17,605.55-7,860.37

Finding the Fourth Proportional to 11,728.93, 17,605.55 and 7,860.37

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Solution

The fourth proportional to 11,728.93, 17,605.55 and 7,860.37 is: 11,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.93 : 17,605.55 = 7,860.37 : x
  2. Step 2: Convert to fraction form
    11,728.93/17,605.55 = 7,860.37/x
  3. Step 3: Cross multiply
    11,728.93x = 17,605.55 × 7,860.37
  4. Step 4: Simplify right side
    11,728.93x = 138,386,137.05
  5. Step 5: Solve for x
    x = 138,386,137.05/11,728.93
  6. Step 6: Final answer
    x = 11,798.70

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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.