Home / 19,461.70-26,857.30-11,078.74

Finding the Fourth Proportional to 19,461.70, 26,857.30 and 11,078.74

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Solution

The fourth proportional to 19,461.70, 26,857.30 and 11,078.74 is: 15,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.70 : 26,857.30 = 11,078.74 : x
  2. Step 2: Convert to fraction form
    19,461.70/26,857.30 = 11,078.74/x
  3. Step 3: Cross multiply
    19,461.70x = 26,857.30 × 11,078.74
  4. Step 4: Simplify right side
    19,461.70x = 297,544,909.52
  5. Step 5: Solve for x
    x = 297,544,909.52/19,461.70
  6. Step 6: Final answer
    x = 15,288.75

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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.