Home / 14,992.63-20,685.69-8,618.89

Finding the Fourth Proportional to 14,992.63, 20,685.69 and 8,618.89

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Solution

The fourth proportional to 14,992.63, 20,685.69 and 8,618.89 is: 11,891.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.63 : 20,685.69 = 8,618.89 : x
  2. Step 2: Convert to fraction form
    14,992.63/20,685.69 = 8,618.89/x
  3. Step 3: Cross multiply
    14,992.63x = 20,685.69 × 8,618.89
  4. Step 4: Simplify right side
    14,992.63x = 178,287,686.68
  5. Step 5: Solve for x
    x = 178,287,686.68/14,992.63
  6. Step 6: Final answer
    x = 11,891.69

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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.