Home / 11,188.83-15,432.20-10,692.51

Finding the Fourth Proportional to 11,188.83, 15,432.20 and 10,692.51

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Solution

The fourth proportional to 11,188.83, 15,432.20 and 10,692.51 is: 14,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.83 : 15,432.20 = 10,692.51 : x
  2. Step 2: Convert to fraction form
    11,188.83/15,432.20 = 10,692.51/x
  3. Step 3: Cross multiply
    11,188.83x = 15,432.20 × 10,692.51
  4. Step 4: Simplify right side
    11,188.83x = 165,008,899.36
  5. Step 5: Solve for x
    x = 165,008,899.36/11,188.83
  6. Step 6: Final answer
    x = 14,747.65

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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.