Home / 15,783.09-23,678.28-4,689.54

Finding the Fourth Proportional to 15,783.09, 23,678.28 and 4,689.54

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Solution

The fourth proportional to 15,783.09, 23,678.28 and 4,689.54 is: 7,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.09 : 23,678.28 = 4,689.54 : x
  2. Step 2: Convert to fraction form
    15,783.09/23,678.28 = 4,689.54/x
  3. Step 3: Cross multiply
    15,783.09x = 23,678.28 × 4,689.54
  4. Step 4: Simplify right side
    15,783.09x = 111,040,241.19
  5. Step 5: Solve for x
    x = 111,040,241.19/15,783.09
  6. Step 6: Final answer
    x = 7,035.39

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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.