Home / 13,451.84-18,545.28-8,976.32

Finding the Fourth Proportional to 13,451.84, 18,545.28 and 8,976.32

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Solution

The fourth proportional to 13,451.84, 18,545.28 and 8,976.32 is: 12,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.84 : 18,545.28 = 8,976.32 : x
  2. Step 2: Convert to fraction form
    13,451.84/18,545.28 = 8,976.32/x
  3. Step 3: Cross multiply
    13,451.84x = 18,545.28 × 8,976.32
  4. Step 4: Simplify right side
    13,451.84x = 166,468,367.77
  5. Step 5: Solve for x
    x = 166,468,367.77/13,451.84
  6. Step 6: Final answer
    x = 12,375.14

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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.