Home / 17,130.41-23,622.92-12,891.60

Finding the Fourth Proportional to 17,130.41, 23,622.92 and 12,891.60

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Solution

The fourth proportional to 17,130.41, 23,622.92 and 12,891.60 is: 17,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.41 : 23,622.92 = 12,891.60 : x
  2. Step 2: Convert to fraction form
    17,130.41/23,622.92 = 12,891.60/x
  3. Step 3: Cross multiply
    17,130.41x = 23,622.92 × 12,891.60
  4. Step 4: Simplify right side
    17,130.41x = 304,537,089.20
  5. Step 5: Solve for x
    x = 304,537,089.20/17,130.41
  6. Step 6: Final answer
    x = 17,777.57

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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.