Home / 14,071.11-21,109.61-5,305.96

Finding the Fourth Proportional to 14,071.11, 21,109.61 and 5,305.96

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Solution

The fourth proportional to 14,071.11, 21,109.61 and 5,305.96 is: 7,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.11 : 21,109.61 = 5,305.96 : x
  2. Step 2: Convert to fraction form
    14,071.11/21,109.61 = 5,305.96/x
  3. Step 3: Cross multiply
    14,071.11x = 21,109.61 × 5,305.96
  4. Step 4: Simplify right side
    14,071.11x = 112,006,746.28
  5. Step 5: Solve for x
    x = 112,006,746.28/14,071.11
  6. Step 6: Final answer
    x = 7,960.05

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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.