Home / 26,091.12-39,139.74-8,315.60

Finding the Fourth Proportional to 26,091.12, 39,139.74 and 8,315.60

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Solution

The fourth proportional to 26,091.12, 39,139.74 and 8,315.60 is: 12,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,091.12 : 39,139.74 = 8,315.60 : x
  2. Step 2: Convert to fraction form
    26,091.12/39,139.74 = 8,315.60/x
  3. Step 3: Cross multiply
    26,091.12x = 39,139.74 × 8,315.60
  4. Step 4: Simplify right side
    26,091.12x = 325,470,226.25
  5. Step 5: Solve for x
    x = 325,470,226.25/26,091.12
  6. Step 6: Final answer
    x = 12,474.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.