Home / 9,181.22-12,670.09-4,989.47

Finding the Fourth Proportional to 9,181.22, 12,670.09 and 4,989.47

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Solution

The fourth proportional to 9,181.22, 12,670.09 and 4,989.47 is: 6,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.22 : 12,670.09 = 4,989.47 : x
  2. Step 2: Convert to fraction form
    9,181.22/12,670.09 = 4,989.47/x
  3. Step 3: Cross multiply
    9,181.22x = 12,670.09 × 4,989.47
  4. Step 4: Simplify right side
    9,181.22x = 63,216,958.13
  5. Step 5: Solve for x
    x = 63,216,958.13/9,181.22
  6. Step 6: Final answer
    x = 6,885.47

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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.