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Finding the Fourth Proportional to 30,173.54, 45,260.65 and 9,113.76

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Solution

The fourth proportional to 30,173.54, 45,260.65 and 9,113.76 is: 13,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.54 : 45,260.65 = 9,113.76 : x
  2. Step 2: Convert to fraction form
    30,173.54/45,260.65 = 9,113.76/x
  3. Step 3: Cross multiply
    30,173.54x = 45,260.65 × 9,113.76
  4. Step 4: Simplify right side
    30,173.54x = 412,494,791.91
  5. Step 5: Solve for x
    x = 412,494,791.91/30,173.54
  6. Step 6: Final answer
    x = 13,670.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.