Home / 18,984.57-26,205.69-11,431.27

Finding the Fourth Proportional to 18,984.57, 26,205.69 and 11,431.27

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Solution

The fourth proportional to 18,984.57, 26,205.69 and 11,431.27 is: 15,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,984.57 : 26,205.69 = 11,431.27 : x
  2. Step 2: Convert to fraction form
    18,984.57/26,205.69 = 11,431.27/x
  3. Step 3: Cross multiply
    18,984.57x = 26,205.69 × 11,431.27
  4. Step 4: Simplify right side
    18,984.57x = 299,564,317.93
  5. Step 5: Solve for x
    x = 299,564,317.93/18,984.57
  6. Step 6: Final answer
    x = 15,779.36

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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.