Home / 13,202.02-18,219-7,899.94

Finding the Fourth Proportional to 13,202.02, 18,219 and 7,899.94

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Solution

The fourth proportional to 13,202.02, 18,219 and 7,899.94 is: 10,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.02 : 18,219 = 7,899.94 : x
  2. Step 2: Convert to fraction form
    13,202.02/18,219 = 7,899.94/x
  3. Step 3: Cross multiply
    13,202.02x = 18,219 × 7,899.94
  4. Step 4: Simplify right side
    13,202.02x = 143,929,006.86
  5. Step 5: Solve for x
    x = 143,929,006.86/13,202.02
  6. Step 6: Final answer
    x = 10,902.04

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Half scale
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Double scale
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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.