Home / 8,331.42-11,485.77-5,809.86

Finding the Fourth Proportional to 8,331.42, 11,485.77 and 5,809.86

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Solution

The fourth proportional to 8,331.42, 11,485.77 and 5,809.86 is: 8,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.42 : 11,485.77 = 5,809.86 : x
  2. Step 2: Convert to fraction form
    8,331.42/11,485.77 = 5,809.86/x
  3. Step 3: Cross multiply
    8,331.42x = 11,485.77 × 5,809.86
  4. Step 4: Simplify right side
    8,331.42x = 66,730,715.69
  5. Step 5: Solve for x
    x = 66,730,715.69/8,331.42
  6. Step 6: Final answer
    x = 8,009.52

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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.