Home / 8,914.42-12,302.32-5,138.14

Finding the Fourth Proportional to 8,914.42, 12,302.32 and 5,138.14

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Solution

The fourth proportional to 8,914.42, 12,302.32 and 5,138.14 is: 7,090.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.42 : 12,302.32 = 5,138.14 : x
  2. Step 2: Convert to fraction form
    8,914.42/12,302.32 = 5,138.14/x
  3. Step 3: Cross multiply
    8,914.42x = 12,302.32 × 5,138.14
  4. Step 4: Simplify right side
    8,914.42x = 63,211,042.48
  5. Step 5: Solve for x
    x = 63,211,042.48/8,914.42
  6. Step 6: Final answer
    x = 7,090.88

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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.