Home / 13,697.04-20,545.44-3,308.76

Finding the Fourth Proportional to 13,697.04, 20,545.44 and 3,308.76

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Solution

The fourth proportional to 13,697.04, 20,545.44 and 3,308.76 is: 4,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.04 : 20,545.44 = 3,308.76 : x
  2. Step 2: Convert to fraction form
    13,697.04/20,545.44 = 3,308.76/x
  3. Step 3: Cross multiply
    13,697.04x = 20,545.44 × 3,308.76
  4. Step 4: Simplify right side
    13,697.04x = 67,979,930.05
  5. Step 5: Solve for x
    x = 67,979,930.05/13,697.04
  6. Step 6: Final answer
    x = 4,963.11

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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.