Home / 18,984.40-26,173.90-13,005.38

Finding the Fourth Proportional to 18,984.40, 26,173.90 and 13,005.38

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Solution

The fourth proportional to 18,984.40, 26,173.90 and 13,005.38 is: 17,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,984.40 : 26,173.90 = 13,005.38 : x
  2. Step 2: Convert to fraction form
    18,984.40/26,173.90 = 13,005.38/x
  3. Step 3: Cross multiply
    18,984.40x = 26,173.90 × 13,005.38
  4. Step 4: Simplify right side
    18,984.40x = 340,401,597.27
  5. Step 5: Solve for x
    x = 340,401,597.27/18,984.40
  6. Step 6: Final answer
    x = 17,930.60

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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.