Home / 17,855.09-26,782.86-12,306.94

Finding the Fourth Proportional to 17,855.09, 26,782.86 and 12,306.94

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Solution

The fourth proportional to 17,855.09, 26,782.86 and 12,306.94 is: 18,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.09 : 26,782.86 = 12,306.94 : x
  2. Step 2: Convert to fraction form
    17,855.09/26,782.86 = 12,306.94/x
  3. Step 3: Cross multiply
    17,855.09x = 26,782.86 × 12,306.94
  4. Step 4: Simplify right side
    17,855.09x = 329,615,178.09
  5. Step 5: Solve for x
    x = 329,615,178.09/17,855.09
  6. Step 6: Final answer
    x = 18,460.57

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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.