Home / 13,654.59-20,489.85-5,756.63

Finding the Fourth Proportional to 13,654.59, 20,489.85 and 5,756.63

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Solution

The fourth proportional to 13,654.59, 20,489.85 and 5,756.63 is: 8,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.59 : 20,489.85 = 5,756.63 : x
  2. Step 2: Convert to fraction form
    13,654.59/20,489.85 = 5,756.63/x
  3. Step 3: Cross multiply
    13,654.59x = 20,489.85 × 5,756.63
  4. Step 4: Simplify right side
    13,654.59x = 117,952,382.76
  5. Step 5: Solve for x
    x = 117,952,382.76/13,654.59
  6. Step 6: Final answer
    x = 8,638.30

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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.