Home / 19,478.28-26,874.04-11,916.73

Finding the Fourth Proportional to 19,478.28, 26,874.04 and 11,916.73

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Solution

The fourth proportional to 19,478.28, 26,874.04 and 11,916.73 is: 16,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.28 : 26,874.04 = 11,916.73 : x
  2. Step 2: Convert to fraction form
    19,478.28/26,874.04 = 11,916.73/x
  3. Step 3: Cross multiply
    19,478.28x = 26,874.04 × 11,916.73
  4. Step 4: Simplify right side
    19,478.28x = 320,250,595.73
  5. Step 5: Solve for x
    x = 320,250,595.73/19,478.28
  6. Step 6: Final answer
    x = 16,441.42

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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.