Home / 15,986.90-22,057.02-9,271.16

Finding the Fourth Proportional to 15,986.90, 22,057.02 and 9,271.16

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Solution

The fourth proportional to 15,986.90, 22,057.02 and 9,271.16 is: 12,791.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.90 : 22,057.02 = 9,271.16 : x
  2. Step 2: Convert to fraction form
    15,986.90/22,057.02 = 9,271.16/x
  3. Step 3: Cross multiply
    15,986.90x = 22,057.02 × 9,271.16
  4. Step 4: Simplify right side
    15,986.90x = 204,494,161.54
  5. Step 5: Solve for x
    x = 204,494,161.54/15,986.90
  6. Step 6: Final answer
    x = 12,791.36

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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.