Home / 14,391.10-19,859.70-8,103.52

Finding the Fourth Proportional to 14,391.10, 19,859.70 and 8,103.52

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Solution

The fourth proportional to 14,391.10, 19,859.70 and 8,103.52 is: 11,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.10 : 19,859.70 = 8,103.52 : x
  2. Step 2: Convert to fraction form
    14,391.10/19,859.70 = 8,103.52/x
  3. Step 3: Cross multiply
    14,391.10x = 19,859.70 × 8,103.52
  4. Step 4: Simplify right side
    14,391.10x = 160,933,476.14
  5. Step 5: Solve for x
    x = 160,933,476.14/14,391.10
  6. Step 6: Final answer
    x = 11,182.85

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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.