Home / 14,275.71-21,438.06-8,761.43

Finding the Fourth Proportional to 14,275.71, 21,438.06 and 8,761.43

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Solution

The fourth proportional to 14,275.71, 21,438.06 and 8,761.43 is: 13,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.71 : 21,438.06 = 8,761.43 : x
  2. Step 2: Convert to fraction form
    14,275.71/21,438.06 = 8,761.43/x
  3. Step 3: Cross multiply
    14,275.71x = 21,438.06 × 8,761.43
  4. Step 4: Simplify right side
    14,275.71x = 187,827,954.84
  5. Step 5: Solve for x
    x = 187,827,954.84/14,275.71
  6. Step 6: Final answer
    x = 13,157.17

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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.