Home / 13,935.36-20,887.68-6,624

Finding the Fourth Proportional to 13,935.36, 20,887.68 and 6,624

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Solution

The fourth proportional to 13,935.36, 20,887.68 and 6,624 is: 9,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.36 : 20,887.68 = 6,624 : x
  2. Step 2: Convert to fraction form
    13,935.36/20,887.68 = 6,624/x
  3. Step 3: Cross multiply
    13,935.36x = 20,887.68 × 6,624
  4. Step 4: Simplify right side
    13,935.36x = 138,359,992.32
  5. Step 5: Solve for x
    x = 138,359,992.32/13,935.36
  6. Step 6: Final answer
    x = 9,928.70

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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.