Home / 18,868.68-26,039.52-10,485

Finding the Fourth Proportional to 18,868.68, 26,039.52 and 10,485

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Solution

The fourth proportional to 18,868.68, 26,039.52 and 10,485 is: 14,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.68 : 26,039.52 = 10,485 : x
  2. Step 2: Convert to fraction form
    18,868.68/26,039.52 = 10,485/x
  3. Step 3: Cross multiply
    18,868.68x = 26,039.52 × 10,485
  4. Step 4: Simplify right side
    18,868.68x = 273,024,367.20
  5. Step 5: Solve for x
    x = 273,024,367.20/18,868.68
  6. Step 6: Final answer
    x = 14,469.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.