Home / 11,330.64-15,636.60-6,615.36

Finding the Fourth Proportional to 11,330.64, 15,636.60 and 6,615.36

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Solution

The fourth proportional to 11,330.64, 15,636.60 and 6,615.36 is: 9,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,330.64 : 15,636.60 = 6,615.36 : x
  2. Step 2: Convert to fraction form
    11,330.64/15,636.60 = 6,615.36/x
  3. Step 3: Cross multiply
    11,330.64x = 15,636.60 × 6,615.36
  4. Step 4: Simplify right side
    11,330.64x = 103,441,738.18
  5. Step 5: Solve for x
    x = 103,441,738.18/11,330.64
  6. Step 6: Final answer
    x = 9,129.38

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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.