Home / 13,626.93-20,399.66-8,345.31

Finding the Fourth Proportional to 13,626.93, 20,399.66 and 8,345.31

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Solution

The fourth proportional to 13,626.93, 20,399.66 and 8,345.31 is: 12,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.93 : 20,399.66 = 8,345.31 : x
  2. Step 2: Convert to fraction form
    13,626.93/20,399.66 = 8,345.31/x
  3. Step 3: Cross multiply
    13,626.93x = 20,399.66 × 8,345.31
  4. Step 4: Simplify right side
    13,626.93x = 170,241,444.87
  5. Step 5: Solve for x
    x = 170,241,444.87/13,626.93
  6. Step 6: Final answer
    x = 12,493.02

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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.