Home / 12,119.47-16,724.63-6,814.33

Finding the Fourth Proportional to 12,119.47, 16,724.63 and 6,814.33

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Solution

The fourth proportional to 12,119.47, 16,724.63 and 6,814.33 is: 9,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.47 : 16,724.63 = 6,814.33 : x
  2. Step 2: Convert to fraction form
    12,119.47/16,724.63 = 6,814.33/x
  3. Step 3: Cross multiply
    12,119.47x = 16,724.63 × 6,814.33
  4. Step 4: Simplify right side
    12,119.47x = 113,967,084.84
  5. Step 5: Solve for x
    x = 113,967,084.84/12,119.47
  6. Step 6: Final answer
    x = 9,403.63

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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.