Home / 14,475.80-21,729.90-11,203.40

Finding the Fourth Proportional to 14,475.80, 21,729.90 and 11,203.40

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Solution

The fourth proportional to 14,475.80, 21,729.90 and 11,203.40 is: 16,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.80 : 21,729.90 = 11,203.40 : x
  2. Step 2: Convert to fraction form
    14,475.80/21,729.90 = 11,203.40/x
  3. Step 3: Cross multiply
    14,475.80x = 21,729.90 × 11,203.40
  4. Step 4: Simplify right side
    14,475.80x = 243,448,761.66
  5. Step 5: Solve for x
    x = 243,448,761.66/14,475.80
  6. Step 6: Final answer
    x = 16,817.64

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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.