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Finding the Third Proportional to 7,477 and 15,728.50

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Solution

The third proportional to 7,477 and 15,728.50 is: 33,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477 : 15,728.50 = 15,728.50 : x
  2. Step 2: Convert to fraction form
    7,477/15,728.50 = 15,728.50/x
  3. Step 3: Cross multiply
    7,477x = 15,728.50 × 15,728.50
  4. Step 4: Simplify right side
    7,477x = 247,385,712.25
  5. Step 5: Solve for x
    x = 247,385,712.25/7,477
  6. Step 6: Final answer
    x = 33,086.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.