Home / 12,629.79-17,429.13-7,325.01

Finding the Fourth Proportional to 12,629.79, 17,429.13 and 7,325.01

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Solution

The fourth proportional to 12,629.79, 17,429.13 and 7,325.01 is: 10,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.79 : 17,429.13 = 7,325.01 : x
  2. Step 2: Convert to fraction form
    12,629.79/17,429.13 = 7,325.01/x
  3. Step 3: Cross multiply
    12,629.79x = 17,429.13 × 7,325.01
  4. Step 4: Simplify right side
    12,629.79x = 127,668,551.54
  5. Step 5: Solve for x
    x = 127,668,551.54/12,629.79
  6. Step 6: Final answer
    x = 10,108.53

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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.