Home / 11,533.52-15,900.36-8,699.60

Finding the Fourth Proportional to 11,533.52, 15,900.36 and 8,699.60

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Solution

The fourth proportional to 11,533.52, 15,900.36 and 8,699.60 is: 11,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,533.52 : 15,900.36 = 8,699.60 : x
  2. Step 2: Convert to fraction form
    11,533.52/15,900.36 = 8,699.60/x
  3. Step 3: Cross multiply
    11,533.52x = 15,900.36 × 8,699.60
  4. Step 4: Simplify right side
    11,533.52x = 138,326,771.86
  5. Step 5: Solve for x
    x = 138,326,771.86/11,533.52
  6. Step 6: Final answer
    x = 11,993.46

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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.