Home / 13,781.02-20,658.93-5,987.02

Finding the Fourth Proportional to 13,781.02, 20,658.93 and 5,987.02

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Solution

The fourth proportional to 13,781.02, 20,658.93 and 5,987.02 is: 8,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.02 : 20,658.93 = 5,987.02 : x
  2. Step 2: Convert to fraction form
    13,781.02/20,658.93 = 5,987.02/x
  3. Step 3: Cross multiply
    13,781.02x = 20,658.93 × 5,987.02
  4. Step 4: Simplify right side
    13,781.02x = 123,685,427.09
  5. Step 5: Solve for x
    x = 123,685,427.09/13,781.02
  6. Step 6: Final answer
    x = 8,975.06

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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.