Home / 12,834.52-19,262.78-9,145.80

Finding the Fourth Proportional to 12,834.52, 19,262.78 and 9,145.80

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Solution

The fourth proportional to 12,834.52, 19,262.78 and 9,145.80 is: 13,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.52 : 19,262.78 = 9,145.80 : x
  2. Step 2: Convert to fraction form
    12,834.52/19,262.78 = 9,145.80/x
  3. Step 3: Cross multiply
    12,834.52x = 19,262.78 × 9,145.80
  4. Step 4: Simplify right side
    12,834.52x = 176,173,533.32
  5. Step 5: Solve for x
    x = 176,173,533.32/12,834.52
  6. Step 6: Final answer
    x = 13,726.54

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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.