Home / 13,332.60-19,998.90-11,145.60

Finding the Fourth Proportional to 13,332.60, 19,998.90 and 11,145.60

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Solution

The fourth proportional to 13,332.60, 19,998.90 and 11,145.60 is: 16,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.60 : 19,998.90 = 11,145.60 : x
  2. Step 2: Convert to fraction form
    13,332.60/19,998.90 = 11,145.60/x
  3. Step 3: Cross multiply
    13,332.60x = 19,998.90 × 11,145.60
  4. Step 4: Simplify right side
    13,332.60x = 222,899,739.84
  5. Step 5: Solve for x
    x = 222,899,739.84/13,332.60
  6. Step 6: Final answer
    x = 16,718.40

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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.