Home / 12,428.45-17,151.34-6,763.25

Finding the Fourth Proportional to 12,428.45, 17,151.34 and 6,763.25

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Solution

The fourth proportional to 12,428.45, 17,151.34 and 6,763.25 is: 9,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.45 : 17,151.34 = 6,763.25 : x
  2. Step 2: Convert to fraction form
    12,428.45/17,151.34 = 6,763.25/x
  3. Step 3: Cross multiply
    12,428.45x = 17,151.34 × 6,763.25
  4. Step 4: Simplify right side
    12,428.45x = 115,998,697.59
  5. Step 5: Solve for x
    x = 115,998,697.59/12,428.45
  6. Step 6: Final answer
    x = 9,333.32

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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.