Home / 19,165.80-26,448.78-10,782.30

Finding the Fourth Proportional to 19,165.80, 26,448.78 and 10,782.30

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Solution

The fourth proportional to 19,165.80, 26,448.78 and 10,782.30 is: 14,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.80 : 26,448.78 = 10,782.30 : x
  2. Step 2: Convert to fraction form
    19,165.80/26,448.78 = 10,782.30/x
  3. Step 3: Cross multiply
    19,165.80x = 26,448.78 × 10,782.30
  4. Step 4: Simplify right side
    19,165.80x = 285,178,680.59
  5. Step 5: Solve for x
    x = 285,178,680.59/19,165.80
  6. Step 6: Final answer
    x = 14,879.56

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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.