Home / 18,238.64-25,190.08-12,259.93

Finding the Fourth Proportional to 18,238.64, 25,190.08 and 12,259.93

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Solution

The fourth proportional to 18,238.64, 25,190.08 and 12,259.93 is: 16,932.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.64 : 25,190.08 = 12,259.93 : x
  2. Step 2: Convert to fraction form
    18,238.64/25,190.08 = 12,259.93/x
  3. Step 3: Cross multiply
    18,238.64x = 25,190.08 × 12,259.93
  4. Step 4: Simplify right side
    18,238.64x = 308,828,617.49
  5. Step 5: Solve for x
    x = 308,828,617.49/18,238.64
  6. Step 6: Final answer
    x = 16,932.66

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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.