Home / 14,220.97-19,620.12-9,188.59

Finding the Fourth Proportional to 14,220.97, 19,620.12 and 9,188.59

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Solution

The fourth proportional to 14,220.97, 19,620.12 and 9,188.59 is: 12,677.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.97 : 19,620.12 = 9,188.59 : x
  2. Step 2: Convert to fraction form
    14,220.97/19,620.12 = 9,188.59/x
  3. Step 3: Cross multiply
    14,220.97x = 19,620.12 × 9,188.59
  4. Step 4: Simplify right side
    14,220.97x = 180,281,260.63
  5. Step 5: Solve for x
    x = 180,281,260.63/14,220.97
  6. Step 6: Final answer
    x = 12,677.14

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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.