Home / 13,332.24-19,969.20-8,122.32

Finding the Fourth Proportional to 13,332.24, 19,969.20 and 8,122.32

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Solution

The fourth proportional to 13,332.24, 19,969.20 and 8,122.32 is: 12,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.24 : 19,969.20 = 8,122.32 : x
  2. Step 2: Convert to fraction form
    13,332.24/19,969.20 = 8,122.32/x
  3. Step 3: Cross multiply
    13,332.24x = 19,969.20 × 8,122.32
  4. Step 4: Simplify right side
    13,332.24x = 162,196,232.54
  5. Step 5: Solve for x
    x = 162,196,232.54/13,332.24
  6. Step 6: Final answer
    x = 12,165.72

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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.