Home / 11,428.20-15,752.10-7,650.06

Finding the Fourth Proportional to 11,428.20, 15,752.10 and 7,650.06

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Solution

The fourth proportional to 11,428.20, 15,752.10 and 7,650.06 is: 10,544.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.20 : 15,752.10 = 7,650.06 : x
  2. Step 2: Convert to fraction form
    11,428.20/15,752.10 = 7,650.06/x
  3. Step 3: Cross multiply
    11,428.20x = 15,752.10 × 7,650.06
  4. Step 4: Simplify right side
    11,428.20x = 120,504,510.13
  5. Step 5: Solve for x
    x = 120,504,510.13/11,428.20
  6. Step 6: Final answer
    x = 10,544.49

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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.