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Finding the Fourth Proportional to 18,756.24, 28,110.06 and 7,650.14

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Solution

The fourth proportional to 18,756.24, 28,110.06 and 7,650.14 is: 11,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756.24 : 28,110.06 = 7,650.14 : x
  2. Step 2: Convert to fraction form
    18,756.24/28,110.06 = 7,650.14/x
  3. Step 3: Cross multiply
    18,756.24x = 28,110.06 × 7,650.14
  4. Step 4: Simplify right side
    18,756.24x = 215,045,753.86
  5. Step 5: Solve for x
    x = 215,045,753.86/18,756.24
  6. Step 6: Final answer
    x = 11,465.29

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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.