Home / 18,752.45-28,133.66-6,907.70

Finding the Fourth Proportional to 18,752.45, 28,133.66 and 6,907.70

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Solution

The fourth proportional to 18,752.45, 28,133.66 and 6,907.70 is: 10,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.45 : 28,133.66 = 6,907.70 : x
  2. Step 2: Convert to fraction form
    18,752.45/28,133.66 = 6,907.70/x
  3. Step 3: Cross multiply
    18,752.45x = 28,133.66 × 6,907.70
  4. Step 4: Simplify right side
    18,752.45x = 194,338,970.79
  5. Step 5: Solve for x
    x = 194,338,970.79/18,752.45
  6. Step 6: Final answer
    x = 10,363.39

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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.