Home / 10,705.18-16,065.65-5,082.87

Finding the Fourth Proportional to 10,705.18, 16,065.65 and 5,082.87

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Solution

The fourth proportional to 10,705.18, 16,065.65 and 5,082.87 is: 7,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,705.18 : 16,065.65 = 5,082.87 : x
  2. Step 2: Convert to fraction form
    10,705.18/16,065.65 = 5,082.87/x
  3. Step 3: Cross multiply
    10,705.18x = 16,065.65 × 5,082.87
  4. Step 4: Simplify right side
    10,705.18x = 81,659,623.12
  5. Step 5: Solve for x
    x = 81,659,623.12/10,705.18
  6. Step 6: Final answer
    x = 7,628.05

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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.