Home / 14,425.96-21,601.56-12,359.20

Finding the Fourth Proportional to 14,425.96, 21,601.56 and 12,359.20

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Solution

The fourth proportional to 14,425.96, 21,601.56 and 12,359.20 is: 18,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.96 : 21,601.56 = 12,359.20 : x
  2. Step 2: Convert to fraction form
    14,425.96/21,601.56 = 12,359.20/x
  3. Step 3: Cross multiply
    14,425.96x = 21,601.56 × 12,359.20
  4. Step 4: Simplify right side
    14,425.96x = 266,978,000.35
  5. Step 5: Solve for x
    x = 266,978,000.35/14,425.96
  6. Step 6: Final answer
    x = 18,506.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.