Home / 7,835.88-10,812.18-5,181.87

Finding the Fourth Proportional to 7,835.88, 10,812.18 and 5,181.87

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Solution

The fourth proportional to 7,835.88, 10,812.18 and 5,181.87 is: 7,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.88 : 10,812.18 = 5,181.87 : x
  2. Step 2: Convert to fraction form
    7,835.88/10,812.18 = 5,181.87/x
  3. Step 3: Cross multiply
    7,835.88x = 10,812.18 × 5,181.87
  4. Step 4: Simplify right side
    7,835.88x = 56,027,311.18
  5. Step 5: Solve for x
    x = 56,027,311.18/7,835.88
  6. Step 6: Final answer
    x = 7,150.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.