Home / 7,881.63-11,814.46-5,110.06

Finding the Fourth Proportional to 7,881.63, 11,814.46 and 5,110.06

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Solution

The fourth proportional to 7,881.63, 11,814.46 and 5,110.06 is: 7,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.63 : 11,814.46 = 5,110.06 : x
  2. Step 2: Convert to fraction form
    7,881.63/11,814.46 = 5,110.06/x
  3. Step 3: Cross multiply
    7,881.63x = 11,814.46 × 5,110.06
  4. Step 4: Simplify right side
    7,881.63x = 60,372,599.47
  5. Step 5: Solve for x
    x = 60,372,599.47/7,881.63
  6. Step 6: Final answer
    x = 7,659.91

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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.