Home / 13,733.85-18,953.90-7,766.58

Finding the Fourth Proportional to 13,733.85, 18,953.90 and 7,766.58

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Solution

The fourth proportional to 13,733.85, 18,953.90 and 7,766.58 is: 10,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.85 : 18,953.90 = 7,766.58 : x
  2. Step 2: Convert to fraction form
    13,733.85/18,953.90 = 7,766.58/x
  3. Step 3: Cross multiply
    13,733.85x = 18,953.90 × 7,766.58
  4. Step 4: Simplify right side
    13,733.85x = 147,206,941.83
  5. Step 5: Solve for x
    x = 147,206,941.83/13,733.85
  6. Step 6: Final answer
    x = 10,718.55

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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.