Home / 14,467.40-21,672.30-7,881.80

Finding the Fourth Proportional to 14,467.40, 21,672.30 and 7,881.80

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Solution

The fourth proportional to 14,467.40, 21,672.30 and 7,881.80 is: 11,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,467.40 : 21,672.30 = 7,881.80 : x
  2. Step 2: Convert to fraction form
    14,467.40/21,672.30 = 7,881.80/x
  3. Step 3: Cross multiply
    14,467.40x = 21,672.30 × 7,881.80
  4. Step 4: Simplify right side
    14,467.40x = 170,816,734.14
  5. Step 5: Solve for x
    x = 170,816,734.14/14,467.40
  6. Step 6: Final answer
    x = 11,807.01

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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.