Home / 8,695.35-13,039.58-3,147.05

Finding the Fourth Proportional to 8,695.35, 13,039.58 and 3,147.05

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Solution

The fourth proportional to 8,695.35, 13,039.58 and 3,147.05 is: 4,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.35 : 13,039.58 = 3,147.05 : x
  2. Step 2: Convert to fraction form
    8,695.35/13,039.58 = 3,147.05/x
  3. Step 3: Cross multiply
    8,695.35x = 13,039.58 × 3,147.05
  4. Step 4: Simplify right side
    8,695.35x = 41,036,250.71
  5. Step 5: Solve for x
    x = 41,036,250.71/8,695.35
  6. Step 6: Final answer
    x = 4,719.33

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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.