Home / 19,337.89-26,636.38-13,662.79

Finding the Fourth Proportional to 19,337.89, 26,636.38 and 13,662.79

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Solution

The fourth proportional to 19,337.89, 26,636.38 and 13,662.79 is: 18,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,337.89 : 26,636.38 = 13,662.79 : x
  2. Step 2: Convert to fraction form
    19,337.89/26,636.38 = 13,662.79/x
  3. Step 3: Cross multiply
    19,337.89x = 26,636.38 × 13,662.79
  4. Step 4: Simplify right side
    19,337.89x = 363,927,197.99
  5. Step 5: Solve for x
    x = 363,927,197.99/19,337.89
  6. Step 6: Final answer
    x = 18,819.39

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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.