Home / 14,003.28-19,314.45-9,519.21

Finding the Fourth Proportional to 14,003.28, 19,314.45 and 9,519.21

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Solution

The fourth proportional to 14,003.28, 19,314.45 and 9,519.21 is: 13,129.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.28 : 19,314.45 = 9,519.21 : x
  2. Step 2: Convert to fraction form
    14,003.28/19,314.45 = 9,519.21/x
  3. Step 3: Cross multiply
    14,003.28x = 19,314.45 × 9,519.21
  4. Step 4: Simplify right side
    14,003.28x = 183,858,305.58
  5. Step 5: Solve for x
    x = 183,858,305.58/14,003.28
  6. Step 6: Final answer
    x = 13,129.66

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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.