Home / 8,984.85-12,399.38-5,005.86

Finding the Fourth Proportional to 8,984.85, 12,399.38 and 5,005.86

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Solution

The fourth proportional to 8,984.85, 12,399.38 and 5,005.86 is: 6,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.85 : 12,399.38 = 5,005.86 : x
  2. Step 2: Convert to fraction form
    8,984.85/12,399.38 = 5,005.86/x
  3. Step 3: Cross multiply
    8,984.85x = 12,399.38 × 5,005.86
  4. Step 4: Simplify right side
    8,984.85x = 62,069,560.37
  5. Step 5: Solve for x
    x = 62,069,560.37/8,984.85
  6. Step 6: Final answer
    x = 6,908.25

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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.