Home / 13,734.03-18,953.79-7,766.25

Finding the Fourth Proportional to 13,734.03, 18,953.79 and 7,766.25

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Solution

The fourth proportional to 13,734.03, 18,953.79 and 7,766.25 is: 10,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.03 : 18,953.79 = 7,766.25 : x
  2. Step 2: Convert to fraction form
    13,734.03/18,953.79 = 7,766.25/x
  3. Step 3: Cross multiply
    13,734.03x = 18,953.79 × 7,766.25
  4. Step 4: Simplify right side
    13,734.03x = 147,199,871.59
  5. Step 5: Solve for x
    x = 147,199,871.59/13,734.03
  6. Step 6: Final answer
    x = 10,717.89

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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.