Home / 12,119.81-16,725.53-6,742.67

Finding the Fourth Proportional to 12,119.81, 16,725.53 and 6,742.67

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Solution

The fourth proportional to 12,119.81, 16,725.53 and 6,742.67 is: 9,304.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.81 : 16,725.53 = 6,742.67 : x
  2. Step 2: Convert to fraction form
    12,119.81/16,725.53 = 6,742.67/x
  3. Step 3: Cross multiply
    12,119.81x = 16,725.53 × 6,742.67
  4. Step 4: Simplify right side
    12,119.81x = 112,774,662.59
  5. Step 5: Solve for x
    x = 112,774,662.59/12,119.81
  6. Step 6: Final answer
    x = 9,304.99

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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.