Home / 18,955.54-28,434.66-5,806.21

Finding the Fourth Proportional to 18,955.54, 28,434.66 and 5,806.21

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Solution

The fourth proportional to 18,955.54, 28,434.66 and 5,806.21 is: 8,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.54 : 28,434.66 = 5,806.21 : x
  2. Step 2: Convert to fraction form
    18,955.54/28,434.66 = 5,806.21/x
  3. Step 3: Cross multiply
    18,955.54x = 28,434.66 × 5,806.21
  4. Step 4: Simplify right side
    18,955.54x = 165,097,607.24
  5. Step 5: Solve for x
    x = 165,097,607.24/18,955.54
  6. Step 6: Final answer
    x = 8,709.73

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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.