Home / 8,132.78-11,220.04-5,303.46

Finding the Fourth Proportional to 8,132.78, 11,220.04 and 5,303.46

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Solution

The fourth proportional to 8,132.78, 11,220.04 and 5,303.46 is: 7,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.78 : 11,220.04 = 5,303.46 : x
  2. Step 2: Convert to fraction form
    8,132.78/11,220.04 = 5,303.46/x
  3. Step 3: Cross multiply
    8,132.78x = 11,220.04 × 5,303.46
  4. Step 4: Simplify right side
    8,132.78x = 59,505,033.34
  5. Step 5: Solve for x
    x = 59,505,033.34/8,132.78
  6. Step 6: Final answer
    x = 7,316.69

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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.