Home / 13,635.36-18,816.28-7,667.58

Finding the Fourth Proportional to 13,635.36, 18,816.28 and 7,667.58

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Solution

The fourth proportional to 13,635.36, 18,816.28 and 7,667.58 is: 10,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.36 : 18,816.28 = 7,667.58 : x
  2. Step 2: Convert to fraction form
    13,635.36/18,816.28 = 7,667.58/x
  3. Step 3: Cross multiply
    13,635.36x = 18,816.28 × 7,667.58
  4. Step 4: Simplify right side
    13,635.36x = 144,275,332.20
  5. Step 5: Solve for x
    x = 144,275,332.20/13,635.36
  6. Step 6: Final answer
    x = 10,580.97

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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.