Home / 7,887.14-11,820.99-4,377.02

Finding the Fourth Proportional to 7,887.14, 11,820.99 and 4,377.02

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Solution

The fourth proportional to 7,887.14, 11,820.99 and 4,377.02 is: 6,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.14 : 11,820.99 = 4,377.02 : x
  2. Step 2: Convert to fraction form
    7,887.14/11,820.99 = 4,377.02/x
  3. Step 3: Cross multiply
    7,887.14x = 11,820.99 × 4,377.02
  4. Step 4: Simplify right side
    7,887.14x = 51,740,709.65
  5. Step 5: Solve for x
    x = 51,740,709.65/7,887.14
  6. Step 6: Final answer
    x = 6,560.14

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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.