Home / 11,580.20-15,981.30-6,544.64

Finding the Fourth Proportional to 11,580.20, 15,981.30 and 6,544.64

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Solution

The fourth proportional to 11,580.20, 15,981.30 and 6,544.64 is: 9,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.20 : 15,981.30 = 6,544.64 : x
  2. Step 2: Convert to fraction form
    11,580.20/15,981.30 = 6,544.64/x
  3. Step 3: Cross multiply
    11,580.20x = 15,981.30 × 6,544.64
  4. Step 4: Simplify right side
    11,580.20x = 104,591,775.33
  5. Step 5: Solve for x
    x = 104,591,775.33/11,580.20
  6. Step 6: Final answer
    x = 9,031.95

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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.