Home / 12,319.02-18,478.80-5,743.44

Finding the Fourth Proportional to 12,319.02, 18,478.80 and 5,743.44

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Solution

The fourth proportional to 12,319.02, 18,478.80 and 5,743.44 is: 8,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.02 : 18,478.80 = 5,743.44 : x
  2. Step 2: Convert to fraction form
    12,319.02/18,478.80 = 5,743.44/x
  3. Step 3: Cross multiply
    12,319.02x = 18,478.80 × 5,743.44
  4. Step 4: Simplify right side
    12,319.02x = 106,131,879.07
  5. Step 5: Solve for x
    x = 106,131,879.07/12,319.02
  6. Step 6: Final answer
    x = 8,615.29

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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.