Home / 8,437.87-11,643.75-5,081.77

Finding the Fourth Proportional to 8,437.87, 11,643.75 and 5,081.77

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Solution

The fourth proportional to 8,437.87, 11,643.75 and 5,081.77 is: 7,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.87 : 11,643.75 = 5,081.77 : x
  2. Step 2: Convert to fraction form
    8,437.87/11,643.75 = 5,081.77/x
  3. Step 3: Cross multiply
    8,437.87x = 11,643.75 × 5,081.77
  4. Step 4: Simplify right side
    8,437.87x = 59,170,859.44
  5. Step 5: Solve for x
    x = 59,170,859.44/8,437.87
  6. Step 6: Final answer
    x = 7,012.54

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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.