Home / 12,953.08-19,429.62-5,161.96

Finding the Fourth Proportional to 12,953.08, 19,429.62 and 5,161.96

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Solution

The fourth proportional to 12,953.08, 19,429.62 and 5,161.96 is: 7,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.08 : 19,429.62 = 5,161.96 : x
  2. Step 2: Convert to fraction form
    12,953.08/19,429.62 = 5,161.96/x
  3. Step 3: Cross multiply
    12,953.08x = 19,429.62 × 5,161.96
  4. Step 4: Simplify right side
    12,953.08x = 100,294,921.26
  5. Step 5: Solve for x
    x = 100,294,921.26/12,953.08
  6. Step 6: Final answer
    x = 7,742.94

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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.