Home / 15,699.16-21,692.10-11,659.96

Finding the Fourth Proportional to 15,699.16, 21,692.10 and 11,659.96

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Solution

The fourth proportional to 15,699.16, 21,692.10 and 11,659.96 is: 16,110.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.16 : 21,692.10 = 11,659.96 : x
  2. Step 2: Convert to fraction form
    15,699.16/21,692.10 = 11,659.96/x
  3. Step 3: Cross multiply
    15,699.16x = 21,692.10 × 11,659.96
  4. Step 4: Simplify right side
    15,699.16x = 252,929,018.32
  5. Step 5: Solve for x
    x = 252,929,018.32/15,699.16
  6. Step 6: Final answer
    x = 16,110.99

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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.