Home / 13,734.60-18,953.88-7,766.28

Finding the Fourth Proportional to 13,734.60, 18,953.88 and 7,766.28

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Solution

The fourth proportional to 13,734.60, 18,953.88 and 7,766.28 is: 10,717.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.60 : 18,953.88 = 7,766.28 : x
  2. Step 2: Convert to fraction form
    13,734.60/18,953.88 = 7,766.28/x
  3. Step 3: Cross multiply
    13,734.60x = 18,953.88 × 7,766.28
  4. Step 4: Simplify right side
    13,734.60x = 147,201,139.17
  5. Step 5: Solve for x
    x = 147,201,139.17/13,734.60
  6. Step 6: Final answer
    x = 10,717.54

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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.