Home / 14,104.28-21,156.69-4,742.57

Finding the Fourth Proportional to 14,104.28, 21,156.69 and 4,742.57

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Solution

The fourth proportional to 14,104.28, 21,156.69 and 4,742.57 is: 7,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.28 : 21,156.69 = 4,742.57 : x
  2. Step 2: Convert to fraction form
    14,104.28/21,156.69 = 4,742.57/x
  3. Step 3: Cross multiply
    14,104.28x = 21,156.69 × 4,742.57
  4. Step 4: Simplify right side
    14,104.28x = 100,337,083.29
  5. Step 5: Solve for x
    x = 100,337,083.29/14,104.28
  6. Step 6: Final answer
    x = 7,113.95

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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.