Home / 14,987.02-20,680.62-8,272.93

Finding the Fourth Proportional to 14,987.02, 20,680.62 and 8,272.93

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Solution

The fourth proportional to 14,987.02, 20,680.62 and 8,272.93 is: 11,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.02 : 20,680.62 = 8,272.93 : x
  2. Step 2: Convert to fraction form
    14,987.02/20,680.62 = 8,272.93/x
  3. Step 3: Cross multiply
    14,987.02x = 20,680.62 × 8,272.93
  4. Step 4: Simplify right side
    14,987.02x = 171,089,321.62
  5. Step 5: Solve for x
    x = 171,089,321.62/14,987.02
  6. Step 6: Final answer
    x = 11,415.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.