Home / 13,734.07-18,953.39-7,766.63

Finding the Fourth Proportional to 13,734.07, 18,953.39 and 7,766.63

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Solution

The fourth proportional to 13,734.07, 18,953.39 and 7,766.63 is: 10,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.07 : 18,953.39 = 7,766.63 : x
  2. Step 2: Convert to fraction form
    13,734.07/18,953.39 = 7,766.63/x
  3. Step 3: Cross multiply
    13,734.07x = 18,953.39 × 7,766.63
  4. Step 4: Simplify right side
    13,734.07x = 147,203,833.78
  5. Step 5: Solve for x
    x = 147,203,833.78/13,734.07
  6. Step 6: Final answer
    x = 10,718.15

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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.