Home / 13,561.90-20,346.10-5,660.02

Finding the Fourth Proportional to 13,561.90, 20,346.10 and 5,660.02

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Solution

The fourth proportional to 13,561.90, 20,346.10 and 5,660.02 is: 8,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.90 : 20,346.10 = 5,660.02 : x
  2. Step 2: Convert to fraction form
    13,561.90/20,346.10 = 5,660.02/x
  3. Step 3: Cross multiply
    13,561.90x = 20,346.10 × 5,660.02
  4. Step 4: Simplify right side
    13,561.90x = 115,159,332.92
  5. Step 5: Solve for x
    x = 115,159,332.92/13,561.90
  6. Step 6: Final answer
    x = 8,491.39

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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.