Home / 18,823.05-28,232.60-7,730.91

Finding the Fourth Proportional to 18,823.05, 28,232.60 and 7,730.91

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Solution

The fourth proportional to 18,823.05, 28,232.60 and 7,730.91 is: 11,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.05 : 28,232.60 = 7,730.91 : x
  2. Step 2: Convert to fraction form
    18,823.05/28,232.60 = 7,730.91/x
  3. Step 3: Cross multiply
    18,823.05x = 28,232.60 × 7,730.91
  4. Step 4: Simplify right side
    18,823.05x = 218,263,651.01
  5. Step 5: Solve for x
    x = 218,263,651.01/18,823.05
  6. Step 6: Final answer
    x = 11,595.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.