Home / 14,481.08-19,985.58-8,819.15

Finding the Fourth Proportional to 14,481.08, 19,985.58 and 8,819.15

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Solution

The fourth proportional to 14,481.08, 19,985.58 and 8,819.15 is: 12,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.08 : 19,985.58 = 8,819.15 : x
  2. Step 2: Convert to fraction form
    14,481.08/19,985.58 = 8,819.15/x
  3. Step 3: Cross multiply
    14,481.08x = 19,985.58 × 8,819.15
  4. Step 4: Simplify right side
    14,481.08x = 176,255,840.35
  5. Step 5: Solve for x
    x = 176,255,840.35/14,481.08
  6. Step 6: Final answer
    x = 12,171.45

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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.