Home / 12,167.13-18,129.73-10,840.68

Finding the Fourth Proportional to 12,167.13, 18,129.73 and 10,840.68

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Solution

The fourth proportional to 12,167.13, 18,129.73 and 10,840.68 is: 16,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.13 : 18,129.73 = 10,840.68 : x
  2. Step 2: Convert to fraction form
    12,167.13/18,129.73 = 10,840.68/x
  3. Step 3: Cross multiply
    12,167.13x = 18,129.73 × 10,840.68
  4. Step 4: Simplify right side
    12,167.13x = 196,538,601.42
  5. Step 5: Solve for x
    x = 196,538,601.42/12,167.13
  6. Step 6: Final answer
    x = 16,153.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.