Home / 26,635.86-39,943.40-9,986.81

Finding the Fourth Proportional to 26,635.86, 39,943.40 and 9,986.81

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Solution

The fourth proportional to 26,635.86, 39,943.40 and 9,986.81 is: 14,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,635.86 : 39,943.40 = 9,986.81 : x
  2. Step 2: Convert to fraction form
    26,635.86/39,943.40 = 9,986.81/x
  3. Step 3: Cross multiply
    26,635.86x = 39,943.40 × 9,986.81
  4. Step 4: Simplify right side
    26,635.86x = 398,907,146.55
  5. Step 5: Solve for x
    x = 398,907,146.55/26,635.86
  6. Step 6: Final answer
    x = 14,976.32

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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.