Home / 15,783.22-23,678.73-4,689.89

Finding the Fourth Proportional to 15,783.22, 23,678.73 and 4,689.89

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Solution

The fourth proportional to 15,783.22, 23,678.73 and 4,689.89 is: 7,035.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.22 : 23,678.73 = 4,689.89 : x
  2. Step 2: Convert to fraction form
    15,783.22/23,678.73 = 4,689.89/x
  3. Step 3: Cross multiply
    15,783.22x = 23,678.73 × 4,689.89
  4. Step 4: Simplify right side
    15,783.22x = 111,050,609.44
  5. Step 5: Solve for x
    x = 111,050,609.44/15,783.22
  6. Step 6: Final answer
    x = 7,035.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.