Home / 18,645.90-25,730.58-10,682.61

Finding the Fourth Proportional to 18,645.90, 25,730.58 and 10,682.61

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Solution

The fourth proportional to 18,645.90, 25,730.58 and 10,682.61 is: 14,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.90 : 25,730.58 = 10,682.61 : x
  2. Step 2: Convert to fraction form
    18,645.90/25,730.58 = 10,682.61/x
  3. Step 3: Cross multiply
    18,645.90x = 25,730.58 × 10,682.61
  4. Step 4: Simplify right side
    18,645.90x = 274,869,751.21
  5. Step 5: Solve for x
    x = 274,869,751.21/18,645.90
  6. Step 6: Final answer
    x = 14,741.57

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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.