Home / 9,305.15-12,830.60-6,782.81

Finding the Fourth Proportional to 9,305.15, 12,830.60 and 6,782.81

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Solution

The fourth proportional to 9,305.15, 12,830.60 and 6,782.81 is: 9,352.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.15 : 12,830.60 = 6,782.81 : x
  2. Step 2: Convert to fraction form
    9,305.15/12,830.60 = 6,782.81/x
  3. Step 3: Cross multiply
    9,305.15x = 12,830.60 × 6,782.81
  4. Step 4: Simplify right side
    9,305.15x = 87,027,474.79
  5. Step 5: Solve for x
    x = 87,027,474.79/9,305.15
  6. Step 6: Final answer
    x = 9,352.62

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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.