Home / 13,553.32-18,702.70-7,583.96

Finding the Fourth Proportional to 13,553.32, 18,702.70 and 7,583.96

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Solution

The fourth proportional to 13,553.32, 18,702.70 and 7,583.96 is: 10,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.32 : 18,702.70 = 7,583.96 : x
  2. Step 2: Convert to fraction form
    13,553.32/18,702.70 = 7,583.96/x
  3. Step 3: Cross multiply
    13,553.32x = 18,702.70 × 7,583.96
  4. Step 4: Simplify right side
    13,553.32x = 141,840,528.69
  5. Step 5: Solve for x
    x = 141,840,528.69/13,553.32
  6. Step 6: Final answer
    x = 10,465.37

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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.