Home / 14,391.36-21,476.88-12,525.12

Finding the Fourth Proportional to 14,391.36, 21,476.88 and 12,525.12

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Solution

The fourth proportional to 14,391.36, 21,476.88 and 12,525.12 is: 18,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.36 : 21,476.88 = 12,525.12 : x
  2. Step 2: Convert to fraction form
    14,391.36/21,476.88 = 12,525.12/x
  3. Step 3: Cross multiply
    14,391.36x = 21,476.88 × 12,525.12
  4. Step 4: Simplify right side
    14,391.36x = 269,000,499.23
  5. Step 5: Solve for x
    x = 269,000,499.23/14,391.36
  6. Step 6: Final answer
    x = 18,691.81

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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.