Home / 17,857.87-26,790.55-5,378.81

Finding the Fourth Proportional to 17,857.87, 26,790.55 and 5,378.81

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Solution

The fourth proportional to 17,857.87, 26,790.55 and 5,378.81 is: 8,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.87 : 26,790.55 = 5,378.81 : x
  2. Step 2: Convert to fraction form
    17,857.87/26,790.55 = 5,378.81/x
  3. Step 3: Cross multiply
    17,857.87x = 26,790.55 × 5,378.81
  4. Step 4: Simplify right side
    17,857.87x = 144,101,130.85
  5. Step 5: Solve for x
    x = 144,101,130.85/17,857.87
  6. Step 6: Final answer
    x = 8,069.34

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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.