Home / 15,781.73-23,676.50-4,688.40

Finding the Fourth Proportional to 15,781.73, 23,676.50 and 4,688.40

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Solution

The fourth proportional to 15,781.73, 23,676.50 and 4,688.40 is: 7,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.73 : 23,676.50 = 4,688.40 : x
  2. Step 2: Convert to fraction form
    15,781.73/23,676.50 = 4,688.40/x
  3. Step 3: Cross multiply
    15,781.73x = 23,676.50 × 4,688.40
  4. Step 4: Simplify right side
    15,781.73x = 111,004,914.61
  5. Step 5: Solve for x
    x = 111,004,914.61/15,781.73
  6. Step 6: Final answer
    x = 7,033.76

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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.