Home / 13,548.11-18,702.78-10,192.20

Finding the Fourth Proportional to 13,548.11, 18,702.78 and 10,192.20

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Solution

The fourth proportional to 13,548.11, 18,702.78 and 10,192.20 is: 14,070.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.11 : 18,702.78 = 10,192.20 : x
  2. Step 2: Convert to fraction form
    13,548.11/18,702.78 = 10,192.20/x
  3. Step 3: Cross multiply
    13,548.11x = 18,702.78 × 10,192.20
  4. Step 4: Simplify right side
    13,548.11x = 190,622,365.96
  5. Step 5: Solve for x
    x = 190,622,365.96/13,548.11
  6. Step 6: Final answer
    x = 14,070.04

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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.