Home / 13,921.64-20,881.51-6,527.74

Finding the Fourth Proportional to 13,921.64, 20,881.51 and 6,527.74

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Solution

The fourth proportional to 13,921.64, 20,881.51 and 6,527.74 is: 9,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.64 : 20,881.51 = 6,527.74 : x
  2. Step 2: Convert to fraction form
    13,921.64/20,881.51 = 6,527.74/x
  3. Step 3: Cross multiply
    13,921.64x = 20,881.51 × 6,527.74
  4. Step 4: Simplify right side
    13,921.64x = 136,309,068.09
  5. Step 5: Solve for x
    x = 136,309,068.09/13,921.64
  6. Step 6: Final answer
    x = 9,791.16

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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.