Home / 12,954.39-17,876.66-7,289.45

Finding the Fourth Proportional to 12,954.39, 17,876.66 and 7,289.45

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Solution

The fourth proportional to 12,954.39, 17,876.66 and 7,289.45 is: 10,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.39 : 17,876.66 = 7,289.45 : x
  2. Step 2: Convert to fraction form
    12,954.39/17,876.66 = 7,289.45/x
  3. Step 3: Cross multiply
    12,954.39x = 17,876.66 × 7,289.45
  4. Step 4: Simplify right side
    12,954.39x = 130,311,019.24
  5. Step 5: Solve for x
    x = 130,311,019.24/12,954.39
  6. Step 6: Final answer
    x = 10,059.22

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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.