Home / 14,391.33-19,856.57-8,103.70

Finding the Fourth Proportional to 14,391.33, 19,856.57 and 8,103.70

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Solution

The fourth proportional to 14,391.33, 19,856.57 and 8,103.70 is: 11,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.33 : 19,856.57 = 8,103.70 : x
  2. Step 2: Convert to fraction form
    14,391.33/19,856.57 = 8,103.70/x
  3. Step 3: Cross multiply
    14,391.33x = 19,856.57 × 8,103.70
  4. Step 4: Simplify right side
    14,391.33x = 160,911,686.31
  5. Step 5: Solve for x
    x = 160,911,686.31/14,391.33
  6. Step 6: Final answer
    x = 11,181.15

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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.