Home / 10,765.10-16,145.76-2,972.18

Finding the Fourth Proportional to 10,765.10, 16,145.76 and 2,972.18

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Solution

The fourth proportional to 10,765.10, 16,145.76 and 2,972.18 is: 4,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.10 : 16,145.76 = 2,972.18 : x
  2. Step 2: Convert to fraction form
    10,765.10/16,145.76 = 2,972.18/x
  3. Step 3: Cross multiply
    10,765.10x = 16,145.76 × 2,972.18
  4. Step 4: Simplify right side
    10,765.10x = 47,988,104.96
  5. Step 5: Solve for x
    x = 47,988,104.96/10,765.10
  6. Step 6: Final answer
    x = 4,457.75

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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.