Home / 8,621.37-11,897.55-5,784.30

Finding the Fourth Proportional to 8,621.37, 11,897.55 and 5,784.30

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Solution

The fourth proportional to 8,621.37, 11,897.55 and 5,784.30 is: 7,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.37 : 11,897.55 = 5,784.30 : x
  2. Step 2: Convert to fraction form
    8,621.37/11,897.55 = 5,784.30/x
  3. Step 3: Cross multiply
    8,621.37x = 11,897.55 × 5,784.30
  4. Step 4: Simplify right side
    8,621.37x = 68,818,998.47
  5. Step 5: Solve for x
    x = 68,818,998.47/8,621.37
  6. Step 6: Final answer
    x = 7,982.37

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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.