Home / 14,221.58-19,625.69-7,761.22

Finding the Fourth Proportional to 14,221.58, 19,625.69 and 7,761.22

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Solution

The fourth proportional to 14,221.58, 19,625.69 and 7,761.22 is: 10,710.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.58 : 19,625.69 = 7,761.22 : x
  2. Step 2: Convert to fraction form
    14,221.58/19,625.69 = 7,761.22/x
  3. Step 3: Cross multiply
    14,221.58x = 19,625.69 × 7,761.22
  4. Step 4: Simplify right side
    14,221.58x = 152,319,268.08
  5. Step 5: Solve for x
    x = 152,319,268.08/14,221.58
  6. Step 6: Final answer
    x = 10,710.44

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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.