Home / 12,953.39-19,431.36-5,160.38

Finding the Fourth Proportional to 12,953.39, 19,431.36 and 5,160.38

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Solution

The fourth proportional to 12,953.39, 19,431.36 and 5,160.38 is: 7,741.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.39 : 19,431.36 = 5,160.38 : x
  2. Step 2: Convert to fraction form
    12,953.39/19,431.36 = 5,160.38/x
  3. Step 3: Cross multiply
    12,953.39x = 19,431.36 × 5,160.38
  4. Step 4: Simplify right side
    12,953.39x = 100,273,104.36
  5. Step 5: Solve for x
    x = 100,273,104.36/12,953.39
  6. Step 6: Final answer
    x = 7,741.07

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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.