Home / 13,823.28-19,070.72-8,508.88

Finding the Fourth Proportional to 13,823.28, 19,070.72 and 8,508.88

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Solution

The fourth proportional to 13,823.28, 19,070.72 and 8,508.88 is: 11,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.28 : 19,070.72 = 8,508.88 : x
  2. Step 2: Convert to fraction form
    13,823.28/19,070.72 = 8,508.88/x
  3. Step 3: Cross multiply
    13,823.28x = 19,070.72 × 8,508.88
  4. Step 4: Simplify right side
    13,823.28x = 162,270,467.99
  5. Step 5: Solve for x
    x = 162,270,467.99/13,823.28
  6. Step 6: Final answer
    x = 11,738.93

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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.