Home / 11,002.76-15,180.30-6,749.45

Finding the Fourth Proportional to 11,002.76, 15,180.30 and 6,749.45

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Solution

The fourth proportional to 11,002.76, 15,180.30 and 6,749.45 is: 9,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,002.76 : 15,180.30 = 6,749.45 : x
  2. Step 2: Convert to fraction form
    11,002.76/15,180.30 = 6,749.45/x
  3. Step 3: Cross multiply
    11,002.76x = 15,180.30 × 6,749.45
  4. Step 4: Simplify right side
    11,002.76x = 102,458,599.93
  5. Step 5: Solve for x
    x = 102,458,599.93/11,002.76
  6. Step 6: Final answer
    x = 9,312.09

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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.