Home / 26,669.80-40,004.86-9,139.72

Finding the Fourth Proportional to 26,669.80, 40,004.86 and 9,139.72

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Solution

The fourth proportional to 26,669.80, 40,004.86 and 9,139.72 is: 13,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,669.80 : 40,004.86 = 9,139.72 : x
  2. Step 2: Convert to fraction form
    26,669.80/40,004.86 = 9,139.72/x
  3. Step 3: Cross multiply
    26,669.80x = 40,004.86 × 9,139.72
  4. Step 4: Simplify right side
    26,669.80x = 365,633,219.04
  5. Step 5: Solve for x
    x = 365,633,219.04/26,669.80
  6. Step 6: Final answer
    x = 13,709.63

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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.