Home / 12,423.25-18,630.90-4,101.40

Finding the Fourth Proportional to 12,423.25, 18,630.90 and 4,101.40

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Solution

The fourth proportional to 12,423.25, 18,630.90 and 4,101.40 is: 6,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.25 : 18,630.90 = 4,101.40 : x
  2. Step 2: Convert to fraction form
    12,423.25/18,630.90 = 4,101.40/x
  3. Step 3: Cross multiply
    12,423.25x = 18,630.90 × 4,101.40
  4. Step 4: Simplify right side
    12,423.25x = 76,412,773.26
  5. Step 5: Solve for x
    x = 76,412,773.26/12,423.25
  6. Step 6: Final answer
    x = 6,150.79

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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.