Home / 13,731.54-18,949.32-7,763.00

Finding the Fourth Proportional to 13,731.54, 18,949.32 and 7,763.00

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Solution

The fourth proportional to 13,731.54, 18,949.32 and 7,763.00 is: 10,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.54 : 18,949.32 = 7,763.00 : x
  2. Step 2: Convert to fraction form
    13,731.54/18,949.32 = 7,763.00/x
  3. Step 3: Cross multiply
    13,731.54x = 18,949.32 × 7,763.00
  4. Step 4: Simplify right side
    13,731.54x = 147,103,547.47
  5. Step 5: Solve for x
    x = 147,103,547.47/13,731.54
  6. Step 6: Final answer
    x = 10,712.82

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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.