Home / 11,533.79-17,317.09-8,778.17

Finding the Fourth Proportional to 11,533.79, 17,317.09 and 8,778.17

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Solution

The fourth proportional to 11,533.79, 17,317.09 and 8,778.17 is: 13,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,533.79 : 17,317.09 = 8,778.17 : x
  2. Step 2: Convert to fraction form
    11,533.79/17,317.09 = 8,778.17/x
  3. Step 3: Cross multiply
    11,533.79x = 17,317.09 × 8,778.17
  4. Step 4: Simplify right side
    11,533.79x = 152,012,414.19
  5. Step 5: Solve for x
    x = 152,012,414.19/11,533.79
  6. Step 6: Final answer
    x = 13,179.74

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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.