Home / 15,699.15-21,664.87-8,529.03

Finding the Fourth Proportional to 15,699.15, 21,664.87 and 8,529.03

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Solution

The fourth proportional to 15,699.15, 21,664.87 and 8,529.03 is: 11,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.15 : 21,664.87 = 8,529.03 : x
  2. Step 2: Convert to fraction form
    15,699.15/21,664.87 = 8,529.03/x
  3. Step 3: Cross multiply
    15,699.15x = 21,664.87 × 8,529.03
  4. Step 4: Simplify right side
    15,699.15x = 184,780,304.85
  5. Step 5: Solve for x
    x = 184,780,304.85/15,699.15
  6. Step 6: Final answer
    x = 11,770.08

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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.