Home / 10,715.74-16,075.14-3,320.86

Finding the Fourth Proportional to 10,715.74, 16,075.14 and 3,320.86

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Solution

The fourth proportional to 10,715.74, 16,075.14 and 3,320.86 is: 4,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.74 : 16,075.14 = 3,320.86 : x
  2. Step 2: Convert to fraction form
    10,715.74/16,075.14 = 3,320.86/x
  3. Step 3: Cross multiply
    10,715.74x = 16,075.14 × 3,320.86
  4. Step 4: Simplify right side
    10,715.74x = 53,383,289.42
  5. Step 5: Solve for x
    x = 53,383,289.42/10,715.74
  6. Step 6: Final answer
    x = 4,981.76

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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.