Home / 13,731.48-18,949.23-7,762.94

Finding the Fourth Proportional to 13,731.48, 18,949.23 and 7,762.94

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Solution

The fourth proportional to 13,731.48, 18,949.23 and 7,762.94 is: 10,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.48 : 18,949.23 = 7,762.94 : x
  2. Step 2: Convert to fraction form
    13,731.48/18,949.23 = 7,762.94/x
  3. Step 3: Cross multiply
    13,731.48x = 18,949.23 × 7,762.94
  4. Step 4: Simplify right side
    13,731.48x = 147,101,735.54
  5. Step 5: Solve for x
    x = 147,101,735.54/13,731.48
  6. Step 6: Final answer
    x = 10,712.74

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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.