Home / 18,977.84-28,457.96-11,082.70

Finding the Fourth Proportional to 18,977.84, 28,457.96 and 11,082.70

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Solution

The fourth proportional to 18,977.84, 28,457.96 and 11,082.70 is: 16,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.84 : 28,457.96 = 11,082.70 : x
  2. Step 2: Convert to fraction form
    18,977.84/28,457.96 = 11,082.70/x
  3. Step 3: Cross multiply
    18,977.84x = 28,457.96 × 11,082.70
  4. Step 4: Simplify right side
    18,977.84x = 315,390,964.58
  5. Step 5: Solve for x
    x = 315,390,964.58/18,977.84
  6. Step 6: Final answer
    x = 16,618.90

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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.