Home / 12,629.19-17,434.53-9,790.14

Finding the Fourth Proportional to 12,629.19, 17,434.53 and 9,790.14

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Solution

The fourth proportional to 12,629.19, 17,434.53 and 9,790.14 is: 13,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.19 : 17,434.53 = 9,790.14 : x
  2. Step 2: Convert to fraction form
    12,629.19/17,434.53 = 9,790.14/x
  3. Step 3: Cross multiply
    12,629.19x = 17,434.53 × 9,790.14
  4. Step 4: Simplify right side
    12,629.19x = 170,686,489.53
  5. Step 5: Solve for x
    x = 170,686,489.53/12,629.19
  6. Step 6: Final answer
    x = 13,515.24

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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.