Home / 11,683.74-16,119.69-6,647.46

Finding the Fourth Proportional to 11,683.74, 16,119.69 and 6,647.46

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Solution

The fourth proportional to 11,683.74, 16,119.69 and 6,647.46 is: 9,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.74 : 16,119.69 = 6,647.46 : x
  2. Step 2: Convert to fraction form
    11,683.74/16,119.69 = 6,647.46/x
  3. Step 3: Cross multiply
    11,683.74x = 16,119.69 × 6,647.46
  4. Step 4: Simplify right side
    11,683.74x = 107,154,994.49
  5. Step 5: Solve for x
    x = 107,154,994.49/11,683.74
  6. Step 6: Final answer
    x = 9,171.29

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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.