Home / 14,654.58-20,221.70-8,280.49

Finding the Fourth Proportional to 14,654.58, 20,221.70 and 8,280.49

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Solution

The fourth proportional to 14,654.58, 20,221.70 and 8,280.49 is: 11,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654.58 : 20,221.70 = 8,280.49 : x
  2. Step 2: Convert to fraction form
    14,654.58/20,221.70 = 8,280.49/x
  3. Step 3: Cross multiply
    14,654.58x = 20,221.70 × 8,280.49
  4. Step 4: Simplify right side
    14,654.58x = 167,445,584.63
  5. Step 5: Solve for x
    x = 167,445,584.63/14,654.58
  6. Step 6: Final answer
    x = 11,426.16

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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.