Home / 10,618.72-15,929.52-3,692.32

Finding the Fourth Proportional to 10,618.72, 15,929.52 and 3,692.32

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Solution

The fourth proportional to 10,618.72, 15,929.52 and 3,692.32 is: 5,538.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.72 : 15,929.52 = 3,692.32 : x
  2. Step 2: Convert to fraction form
    10,618.72/15,929.52 = 3,692.32/x
  3. Step 3: Cross multiply
    10,618.72x = 15,929.52 × 3,692.32
  4. Step 4: Simplify right side
    10,618.72x = 58,816,885.29
  5. Step 5: Solve for x
    x = 58,816,885.29/10,618.72
  6. Step 6: Final answer
    x = 5,538.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.