Home / 14,453.40-21,669.59-9,761.78

Finding the Fourth Proportional to 14,453.40, 21,669.59 and 9,761.78

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Solution

The fourth proportional to 14,453.40, 21,669.59 and 9,761.78 is: 14,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.40 : 21,669.59 = 9,761.78 : x
  2. Step 2: Convert to fraction form
    14,453.40/21,669.59 = 9,761.78/x
  3. Step 3: Cross multiply
    14,453.40x = 21,669.59 × 9,761.78
  4. Step 4: Simplify right side
    14,453.40x = 211,533,848.85
  5. Step 5: Solve for x
    x = 211,533,848.85/14,453.40
  6. Step 6: Final answer
    x = 14,635.57

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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.