Home / 19,007.18-28,511.94-7,320.44

Finding the Fourth Proportional to 19,007.18, 28,511.94 and 7,320.44

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Solution

The fourth proportional to 19,007.18, 28,511.94 and 7,320.44 is: 10,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.18 : 28,511.94 = 7,320.44 : x
  2. Step 2: Convert to fraction form
    19,007.18/28,511.94 = 7,320.44/x
  3. Step 3: Cross multiply
    19,007.18x = 28,511.94 × 7,320.44
  4. Step 4: Simplify right side
    19,007.18x = 208,719,946.05
  5. Step 5: Solve for x
    x = 208,719,946.05/19,007.18
  6. Step 6: Final answer
    x = 10,981.11

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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.