Home / 19,212.25-26,534.78-12,913.69

Finding the Fourth Proportional to 19,212.25, 26,534.78 and 12,913.69

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Solution

The fourth proportional to 19,212.25, 26,534.78 and 12,913.69 is: 17,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.25 : 26,534.78 = 12,913.69 : x
  2. Step 2: Convert to fraction form
    19,212.25/26,534.78 = 12,913.69/x
  3. Step 3: Cross multiply
    19,212.25x = 26,534.78 × 12,913.69
  4. Step 4: Simplify right side
    19,212.25x = 342,661,923.14
  5. Step 5: Solve for x
    x = 342,661,923.14/19,212.25
  6. Step 6: Final answer
    x = 17,835.60

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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.