Home / 14,481.93-19,981.83-8,819.64

Finding the Fourth Proportional to 14,481.93, 19,981.83 and 8,819.64

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Solution

The fourth proportional to 14,481.93, 19,981.83 and 8,819.64 is: 12,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.93 : 19,981.83 = 8,819.64 : x
  2. Step 2: Convert to fraction form
    14,481.93/19,981.83 = 8,819.64/x
  3. Step 3: Cross multiply
    14,481.93x = 19,981.83 × 8,819.64
  4. Step 4: Simplify right side
    14,481.93x = 176,232,547.14
  5. Step 5: Solve for x
    x = 176,232,547.14/14,481.93
  6. Step 6: Final answer
    x = 12,169.13

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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.