Home / 13,394.13-20,088.45-5,071.28

Finding the Fourth Proportional to 13,394.13, 20,088.45 and 5,071.28

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Solution

The fourth proportional to 13,394.13, 20,088.45 and 5,071.28 is: 7,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.13 : 20,088.45 = 5,071.28 : x
  2. Step 2: Convert to fraction form
    13,394.13/20,088.45 = 5,071.28/x
  3. Step 3: Cross multiply
    13,394.13x = 20,088.45 × 5,071.28
  4. Step 4: Simplify right side
    13,394.13x = 101,874,054.27
  5. Step 5: Solve for x
    x = 101,874,054.27/13,394.13
  6. Step 6: Final answer
    x = 7,605.87

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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.