Home / 12,474.63-18,720.09-4,683.42

Finding the Fourth Proportional to 12,474.63, 18,720.09 and 4,683.42

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Solution

The fourth proportional to 12,474.63, 18,720.09 and 4,683.42 is: 7,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.63 : 18,720.09 = 4,683.42 : x
  2. Step 2: Convert to fraction form
    12,474.63/18,720.09 = 4,683.42/x
  3. Step 3: Cross multiply
    12,474.63x = 18,720.09 × 4,683.42
  4. Step 4: Simplify right side
    12,474.63x = 87,674,043.91
  5. Step 5: Solve for x
    x = 87,674,043.91/12,474.63
  6. Step 6: Final answer
    x = 7,028.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.