Home / 14,146.38-19,519.92-7,858.76

Finding the Fourth Proportional to 14,146.38, 19,519.92 and 7,858.76

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Solution

The fourth proportional to 14,146.38, 19,519.92 and 7,858.76 is: 10,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.38 : 19,519.92 = 7,858.76 : x
  2. Step 2: Convert to fraction form
    14,146.38/19,519.92 = 7,858.76/x
  3. Step 3: Cross multiply
    14,146.38x = 19,519.92 × 7,858.76
  4. Step 4: Simplify right side
    14,146.38x = 153,402,268.90
  5. Step 5: Solve for x
    x = 153,402,268.90/14,146.38
  6. Step 6: Final answer
    x = 10,843.92

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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.