Home / 12,483.86-18,729.35-4,169.31

Finding the Fourth Proportional to 12,483.86, 18,729.35 and 4,169.31

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Solution

The fourth proportional to 12,483.86, 18,729.35 and 4,169.31 is: 6,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.86 : 18,729.35 = 4,169.31 : x
  2. Step 2: Convert to fraction form
    12,483.86/18,729.35 = 4,169.31/x
  3. Step 3: Cross multiply
    12,483.86x = 18,729.35 × 4,169.31
  4. Step 4: Simplify right side
    12,483.86x = 78,088,445.40
  5. Step 5: Solve for x
    x = 78,088,445.40/12,483.86
  6. Step 6: Final answer
    x = 6,255.15

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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.