Home / 16,681.44-22,993.92-13,139.04

Finding the Fourth Proportional to 16,681.44, 22,993.92 and 13,139.04

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Solution

The fourth proportional to 16,681.44, 22,993.92 and 13,139.04 is: 18,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,681.44 : 22,993.92 = 13,139.04 : x
  2. Step 2: Convert to fraction form
    16,681.44/22,993.92 = 13,139.04/x
  3. Step 3: Cross multiply
    16,681.44x = 22,993.92 × 13,139.04
  4. Step 4: Simplify right side
    16,681.44x = 302,118,034.64
  5. Step 5: Solve for x
    x = 302,118,034.64/16,681.44
  6. Step 6: Final answer
    x = 18,111.03

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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.