Home / 12,903.86-19,357.60-4,136.72

Finding the Fourth Proportional to 12,903.86, 19,357.60 and 4,136.72

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Solution

The fourth proportional to 12,903.86, 19,357.60 and 4,136.72 is: 6,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.86 : 19,357.60 = 4,136.72 : x
  2. Step 2: Convert to fraction form
    12,903.86/19,357.60 = 4,136.72/x
  3. Step 3: Cross multiply
    12,903.86x = 19,357.60 × 4,136.72
  4. Step 4: Simplify right side
    12,903.86x = 80,076,971.07
  5. Step 5: Solve for x
    x = 80,076,971.07/12,903.86
  6. Step 6: Final answer
    x = 6,205.66

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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.