Home / 12,629.70-17,428.95-7,327.62

Finding the Fourth Proportional to 12,629.70, 17,428.95 and 7,327.62

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Solution

The fourth proportional to 12,629.70, 17,428.95 and 7,327.62 is: 10,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.70 : 17,428.95 = 7,327.62 : x
  2. Step 2: Convert to fraction form
    12,629.70/17,428.95 = 7,327.62/x
  3. Step 3: Cross multiply
    12,629.70x = 17,428.95 × 7,327.62
  4. Step 4: Simplify right side
    12,629.70x = 127,712,722.60
  5. Step 5: Solve for x
    x = 127,712,722.60/12,629.70
  6. Step 6: Final answer
    x = 10,112.09

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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.