Home / 14,451.98-21,642.55-11,937.78

Finding the Fourth Proportional to 14,451.98, 21,642.55 and 11,937.78

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Solution

The fourth proportional to 14,451.98, 21,642.55 and 11,937.78 is: 17,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.98 : 21,642.55 = 11,937.78 : x
  2. Step 2: Convert to fraction form
    14,451.98/21,642.55 = 11,937.78/x
  3. Step 3: Cross multiply
    14,451.98x = 21,642.55 × 11,937.78
  4. Step 4: Simplify right side
    14,451.98x = 258,363,970.69
  5. Step 5: Solve for x
    x = 258,363,970.69/14,451.98
  6. Step 6: Final answer
    x = 17,877.42

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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.