Home / 13,332.10-20,005.05-5,440.40

Finding the Fourth Proportional to 13,332.10, 20,005.05 and 5,440.40

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Solution

The fourth proportional to 13,332.10, 20,005.05 and 5,440.40 is: 8,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.10 : 20,005.05 = 5,440.40 : x
  2. Step 2: Convert to fraction form
    13,332.10/20,005.05 = 5,440.40/x
  3. Step 3: Cross multiply
    13,332.10x = 20,005.05 × 5,440.40
  4. Step 4: Simplify right side
    13,332.10x = 108,835,474.02
  5. Step 5: Solve for x
    x = 108,835,474.02/13,332.10
  6. Step 6: Final answer
    x = 8,163.42

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1.5x scale

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.