Home / 7,611.78-11,430.36-4,708.56

Finding the Fourth Proportional to 7,611.78, 11,430.36 and 4,708.56

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Solution

The fourth proportional to 7,611.78, 11,430.36 and 4,708.56 is: 7,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.78 : 11,430.36 = 4,708.56 : x
  2. Step 2: Convert to fraction form
    7,611.78/11,430.36 = 4,708.56/x
  3. Step 3: Cross multiply
    7,611.78x = 11,430.36 × 4,708.56
  4. Step 4: Simplify right side
    7,611.78x = 53,820,535.88
  5. Step 5: Solve for x
    x = 53,820,535.88/7,611.78
  6. Step 6: Final answer
    x = 7,070.69

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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.