Home / 8,947.73-13,421.61-3,399.77

Finding the Fourth Proportional to 8,947.73, 13,421.61 and 3,399.77

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Solution

The fourth proportional to 8,947.73, 13,421.61 and 3,399.77 is: 5,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.73 : 13,421.61 = 3,399.77 : x
  2. Step 2: Convert to fraction form
    8,947.73/13,421.61 = 3,399.77/x
  3. Step 3: Cross multiply
    8,947.73x = 13,421.61 × 3,399.77
  4. Step 4: Simplify right side
    8,947.73x = 45,630,420.58
  5. Step 5: Solve for x
    x = 45,630,420.58/8,947.73
  6. Step 6: Final answer
    x = 5,099.66

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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.