Home / 18,851.73-28,277.58-4,811.76

Finding the Fourth Proportional to 18,851.73, 28,277.58 and 4,811.76

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Solution

The fourth proportional to 18,851.73, 28,277.58 and 4,811.76 is: 7,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.73 : 28,277.58 = 4,811.76 : x
  2. Step 2: Convert to fraction form
    18,851.73/28,277.58 = 4,811.76/x
  3. Step 3: Cross multiply
    18,851.73x = 28,277.58 × 4,811.76
  4. Step 4: Simplify right side
    18,851.73x = 136,064,928.34
  5. Step 5: Solve for x
    x = 136,064,928.34/18,851.73
  6. Step 6: Final answer
    x = 7,217.64

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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.