Home / 26,186.50-39,285.90-8,656.33

Finding the Fourth Proportional to 26,186.50, 39,285.90 and 8,656.33

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Solution

The fourth proportional to 26,186.50, 39,285.90 and 8,656.33 is: 12,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,186.50 : 39,285.90 = 8,656.33 : x
  2. Step 2: Convert to fraction form
    26,186.50/39,285.90 = 8,656.33/x
  3. Step 3: Cross multiply
    26,186.50x = 39,285.90 × 8,656.33
  4. Step 4: Simplify right side
    26,186.50x = 340,071,518.32
  5. Step 5: Solve for x
    x = 340,071,518.32/26,186.50
  6. Step 6: Final answer
    x = 12,986.52

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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.