Home / 19,869.90-27,408.30-11,798.09

Finding the Fourth Proportional to 19,869.90, 27,408.30 and 11,798.09

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Solution

The fourth proportional to 19,869.90, 27,408.30 and 11,798.09 is: 16,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.90 : 27,408.30 = 11,798.09 : x
  2. Step 2: Convert to fraction form
    19,869.90/27,408.30 = 11,798.09/x
  3. Step 3: Cross multiply
    19,869.90x = 27,408.30 × 11,798.09
  4. Step 4: Simplify right side
    19,869.90x = 323,365,590.15
  5. Step 5: Solve for x
    x = 323,365,590.15/19,869.90
  6. Step 6: Final answer
    x = 16,274.14

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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.