Home / 8,557.52-11,813.65-5,777.60

Finding the Fourth Proportional to 8,557.52, 11,813.65 and 5,777.60

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Solution

The fourth proportional to 8,557.52, 11,813.65 and 5,777.60 is: 7,975.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.52 : 11,813.65 = 5,777.60 : x
  2. Step 2: Convert to fraction form
    8,557.52/11,813.65 = 5,777.60/x
  3. Step 3: Cross multiply
    8,557.52x = 11,813.65 × 5,777.60
  4. Step 4: Simplify right side
    8,557.52x = 68,254,470.73
  5. Step 5: Solve for x
    x = 68,254,470.73/8,557.52
  6. Step 6: Final answer
    x = 7,975.97

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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.