Home / 18,974.22-28,457.08-5,826.72

Finding the Fourth Proportional to 18,974.22, 28,457.08 and 5,826.72

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Solution

The fourth proportional to 18,974.22, 28,457.08 and 5,826.72 is: 8,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.22 : 28,457.08 = 5,826.72 : x
  2. Step 2: Convert to fraction form
    18,974.22/28,457.08 = 5,826.72/x
  3. Step 3: Cross multiply
    18,974.22x = 28,457.08 × 5,826.72
  4. Step 4: Simplify right side
    18,974.22x = 165,811,437.18
  5. Step 5: Solve for x
    x = 165,811,437.18/18,974.22
  6. Step 6: Final answer
    x = 8,738.77

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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.