Home / 14,476.40-21,721.80-5,711.60

Finding the Fourth Proportional to 14,476.40, 21,721.80 and 5,711.60

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Solution

The fourth proportional to 14,476.40, 21,721.80 and 5,711.60 is: 8,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.40 : 21,721.80 = 5,711.60 : x
  2. Step 2: Convert to fraction form
    14,476.40/21,721.80 = 5,711.60/x
  3. Step 3: Cross multiply
    14,476.40x = 21,721.80 × 5,711.60
  4. Step 4: Simplify right side
    14,476.40x = 124,066,232.88
  5. Step 5: Solve for x
    x = 124,066,232.88/14,476.40
  6. Step 6: Final answer
    x = 8,570.24

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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.