Home / 14,518.07-21,780.75-4,129.82

Finding the Fourth Proportional to 14,518.07, 21,780.75 and 4,129.82

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Solution

The fourth proportional to 14,518.07, 21,780.75 and 4,129.82 is: 6,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.07 : 21,780.75 = 4,129.82 : x
  2. Step 2: Convert to fraction form
    14,518.07/21,780.75 = 4,129.82/x
  3. Step 3: Cross multiply
    14,518.07x = 21,780.75 × 4,129.82
  4. Step 4: Simplify right side
    14,518.07x = 89,950,468.06
  5. Step 5: Solve for x
    x = 89,950,468.06/14,518.07
  6. Step 6: Final answer
    x = 6,195.76

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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.