Home / 14,451.89-19,938.62-8,784.86

Finding the Fourth Proportional to 14,451.89, 19,938.62 and 8,784.86

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Solution

The fourth proportional to 14,451.89, 19,938.62 and 8,784.86 is: 12,120.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.89 : 19,938.62 = 8,784.86 : x
  2. Step 2: Convert to fraction form
    14,451.89/19,938.62 = 8,784.86/x
  3. Step 3: Cross multiply
    14,451.89x = 19,938.62 × 8,784.86
  4. Step 4: Simplify right side
    14,451.89x = 175,157,907.56
  5. Step 5: Solve for x
    x = 175,157,907.56/14,451.89
  6. Step 6: Final answer
    x = 12,120.07

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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.