Home / 12,629.01-17,423.81-8,155.79

Finding the Fourth Proportional to 12,629.01, 17,423.81 and 8,155.79

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Solution

The fourth proportional to 12,629.01, 17,423.81 and 8,155.79 is: 11,252.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.01 : 17,423.81 = 8,155.79 : x
  2. Step 2: Convert to fraction form
    12,629.01/17,423.81 = 8,155.79/x
  3. Step 3: Cross multiply
    12,629.01x = 17,423.81 × 8,155.79
  4. Step 4: Simplify right side
    12,629.01x = 142,104,903.39
  5. Step 5: Solve for x
    x = 142,104,903.39/12,629.01
  6. Step 6: Final answer
    x = 11,252.26

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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.