Home / 13,242.84-18,273.12-8,533.44

Finding the Fourth Proportional to 13,242.84, 18,273.12 and 8,533.44

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Solution

The fourth proportional to 13,242.84, 18,273.12 and 8,533.44 is: 11,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.84 : 18,273.12 = 8,533.44 : x
  2. Step 2: Convert to fraction form
    13,242.84/18,273.12 = 8,533.44/x
  3. Step 3: Cross multiply
    13,242.84x = 18,273.12 × 8,533.44
  4. Step 4: Simplify right side
    13,242.84x = 155,932,573.13
  5. Step 5: Solve for x
    x = 155,932,573.13/13,242.84
  6. Step 6: Final answer
    x = 11,774.86

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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.