Home / 8,071.66-11,138.88-4,486.60

Finding the Fourth Proportional to 8,071.66, 11,138.88 and 4,486.60

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Solution

The fourth proportional to 8,071.66, 11,138.88 and 4,486.60 is: 6,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.66 : 11,138.88 = 4,486.60 : x
  2. Step 2: Convert to fraction form
    8,071.66/11,138.88 = 4,486.60/x
  3. Step 3: Cross multiply
    8,071.66x = 11,138.88 × 4,486.60
  4. Step 4: Simplify right side
    8,071.66x = 49,975,699.01
  5. Step 5: Solve for x
    x = 49,975,699.01/8,071.66
  6. Step 6: Final answer
    x = 6,191.50

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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.