Home / 14,135.45-21,224.10-7,907.90

Finding the Fourth Proportional to 14,135.45, 21,224.10 and 7,907.90

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Solution

The fourth proportional to 14,135.45, 21,224.10 and 7,907.90 is: 11,873.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.45 : 21,224.10 = 7,907.90 : x
  2. Step 2: Convert to fraction form
    14,135.45/21,224.10 = 7,907.90/x
  3. Step 3: Cross multiply
    14,135.45x = 21,224.10 × 7,907.90
  4. Step 4: Simplify right side
    14,135.45x = 167,838,060.39
  5. Step 5: Solve for x
    x = 167,838,060.39/14,135.45
  6. Step 6: Final answer
    x = 11,873.56

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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.