Home / 14,509.89-20,063.84-11,520.45

Finding the Fourth Proportional to 14,509.89, 20,063.84 and 11,520.45

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Solution

The fourth proportional to 14,509.89, 20,063.84 and 11,520.45 is: 15,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,509.89 : 20,063.84 = 11,520.45 : x
  2. Step 2: Convert to fraction form
    14,509.89/20,063.84 = 11,520.45/x
  3. Step 3: Cross multiply
    14,509.89x = 20,063.84 × 11,520.45
  4. Step 4: Simplify right side
    14,509.89x = 231,144,407.93
  5. Step 5: Solve for x
    x = 231,144,407.93/14,509.89
  6. Step 6: Final answer
    x = 15,930.13

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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.