Home / 11,520.39-17,281.86-3,623.18

Finding the Fourth Proportional to 11,520.39, 17,281.86 and 3,623.18

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Solution

The fourth proportional to 11,520.39, 17,281.86 and 3,623.18 is: 5,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.39 : 17,281.86 = 3,623.18 : x
  2. Step 2: Convert to fraction form
    11,520.39/17,281.86 = 3,623.18/x
  3. Step 3: Cross multiply
    11,520.39x = 17,281.86 × 3,623.18
  4. Step 4: Simplify right side
    11,520.39x = 62,615,289.51
  5. Step 5: Solve for x
    x = 62,615,289.51/11,520.39
  6. Step 6: Final answer
    x = 5,435.17

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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.