Home / 13,971.64-20,953.26-5,085.82

Finding the Fourth Proportional to 13,971.64, 20,953.26 and 5,085.82

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Solution

The fourth proportional to 13,971.64, 20,953.26 and 5,085.82 is: 7,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.64 : 20,953.26 = 5,085.82 : x
  2. Step 2: Convert to fraction form
    13,971.64/20,953.26 = 5,085.82/x
  3. Step 3: Cross multiply
    13,971.64x = 20,953.26 × 5,085.82
  4. Step 4: Simplify right side
    13,971.64x = 106,564,508.77
  5. Step 5: Solve for x
    x = 106,564,508.77/13,971.64
  6. Step 6: Final answer
    x = 7,627.20

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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.