Home / 18,225.29-25,156.71-11,840.64

Finding the Fourth Proportional to 18,225.29, 25,156.71 and 11,840.64

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Solution

The fourth proportional to 18,225.29, 25,156.71 and 11,840.64 is: 16,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.29 : 25,156.71 = 11,840.64 : x
  2. Step 2: Convert to fraction form
    18,225.29/25,156.71 = 11,840.64/x
  3. Step 3: Cross multiply
    18,225.29x = 25,156.71 × 11,840.64
  4. Step 4: Simplify right side
    18,225.29x = 297,871,546.69
  5. Step 5: Solve for x
    x = 297,871,546.69/18,225.29
  6. Step 6: Final answer
    x = 16,343.86

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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.