Home / 25,916.88-38,874.86-8,386.73

Finding the Fourth Proportional to 25,916.88, 38,874.86 and 8,386.73

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Solution

The fourth proportional to 25,916.88, 38,874.86 and 8,386.73 is: 12,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,916.88 : 38,874.86 = 8,386.73 : x
  2. Step 2: Convert to fraction form
    25,916.88/38,874.86 = 8,386.73/x
  3. Step 3: Cross multiply
    25,916.88x = 38,874.86 × 8,386.73
  4. Step 4: Simplify right side
    25,916.88x = 326,032,718.30
  5. Step 5: Solve for x
    x = 326,032,718.30/25,916.88
  6. Step 6: Final answer
    x = 12,579.94

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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.