Home / 19,758.47-27,266.42-10,805.74

Finding the Fourth Proportional to 19,758.47, 27,266.42 and 10,805.74

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Solution

The fourth proportional to 19,758.47, 27,266.42 and 10,805.74 is: 14,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.47 : 27,266.42 = 10,805.74 : x
  2. Step 2: Convert to fraction form
    19,758.47/27,266.42 = 10,805.74/x
  3. Step 3: Cross multiply
    19,758.47x = 27,266.42 × 10,805.74
  4. Step 4: Simplify right side
    19,758.47x = 294,633,804.10
  5. Step 5: Solve for x
    x = 294,633,804.10/19,758.47
  6. Step 6: Final answer
    x = 14,911.78

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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.