Home / 12,648.95-18,975.46-4,752.06

Finding the Fourth Proportional to 12,648.95, 18,975.46 and 4,752.06

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Solution

The fourth proportional to 12,648.95, 18,975.46 and 4,752.06 is: 7,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.95 : 18,975.46 = 4,752.06 : x
  2. Step 2: Convert to fraction form
    12,648.95/18,975.46 = 4,752.06/x
  3. Step 3: Cross multiply
    12,648.95x = 18,975.46 × 4,752.06
  4. Step 4: Simplify right side
    12,648.95x = 90,172,524.45
  5. Step 5: Solve for x
    x = 90,172,524.45/12,648.95
  6. Step 6: Final answer
    x = 7,128.85

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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.