Home / 13,778.02-20,675.94-5,012.20

Finding the Fourth Proportional to 13,778.02, 20,675.94 and 5,012.20

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Solution

The fourth proportional to 13,778.02, 20,675.94 and 5,012.20 is: 7,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.02 : 20,675.94 = 5,012.20 : x
  2. Step 2: Convert to fraction form
    13,778.02/20,675.94 = 5,012.20/x
  3. Step 3: Cross multiply
    13,778.02x = 20,675.94 × 5,012.20
  4. Step 4: Simplify right side
    13,778.02x = 103,631,946.47
  5. Step 5: Solve for x
    x = 103,631,946.47/13,778.02
  6. Step 6: Final answer
    x = 7,521.54

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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.