Home / 13,917.60-19,213.68-9,465.12

Finding the Fourth Proportional to 13,917.60, 19,213.68 and 9,465.12

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Solution

The fourth proportional to 13,917.60, 19,213.68 and 9,465.12 is: 13,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.60 : 19,213.68 = 9,465.12 : x
  2. Step 2: Convert to fraction form
    13,917.60/19,213.68 = 9,465.12/x
  3. Step 3: Cross multiply
    13,917.60x = 19,213.68 × 9,465.12
  4. Step 4: Simplify right side
    13,917.60x = 181,859,786.84
  5. Step 5: Solve for x
    x = 181,859,786.84/13,917.60
  6. Step 6: Final answer
    x = 13,066.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.