Home / 8,485.96-11,710.09-5,126.78

Finding the Fourth Proportional to 8,485.96, 11,710.09 and 5,126.78

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Solution

The fourth proportional to 8,485.96, 11,710.09 and 5,126.78 is: 7,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.96 : 11,710.09 = 5,126.78 : x
  2. Step 2: Convert to fraction form
    8,485.96/11,710.09 = 5,126.78/x
  3. Step 3: Cross multiply
    8,485.96x = 11,710.09 × 5,126.78
  4. Step 4: Simplify right side
    8,485.96x = 60,035,092.71
  5. Step 5: Solve for x
    x = 60,035,092.71/8,485.96
  6. Step 6: Final answer
    x = 7,074.64

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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.