Home / 11,688.75-17,533.13-3,480.75

Finding the Fourth Proportional to 11,688.75, 17,533.13 and 3,480.75

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Solution

The fourth proportional to 11,688.75, 17,533.13 and 3,480.75 is: 5,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.75 : 17,533.13 = 3,480.75 : x
  2. Step 2: Convert to fraction form
    11,688.75/17,533.13 = 3,480.75/x
  3. Step 3: Cross multiply
    11,688.75x = 17,533.13 × 3,480.75
  4. Step 4: Simplify right side
    11,688.75x = 61,028,424.84
  5. Step 5: Solve for x
    x = 61,028,424.84/11,688.75
  6. Step 6: Final answer
    x = 5,221.13

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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.