Home / 13,369.24-18,451.48-7,702.90

Finding the Fourth Proportional to 13,369.24, 18,451.48 and 7,702.90

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Solution

The fourth proportional to 13,369.24, 18,451.48 and 7,702.90 is: 10,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.24 : 18,451.48 = 7,702.90 : x
  2. Step 2: Convert to fraction form
    13,369.24/18,451.48 = 7,702.90/x
  3. Step 3: Cross multiply
    13,369.24x = 18,451.48 × 7,702.90
  4. Step 4: Simplify right side
    13,369.24x = 142,129,906.24
  5. Step 5: Solve for x
    x = 142,129,906.24/13,369.24
  6. Step 6: Final answer
    x = 10,631.11

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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.