Home / 15,699.51-21,665.24-8,529.37

Finding the Fourth Proportional to 15,699.51, 21,665.24 and 8,529.37

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Solution

The fourth proportional to 15,699.51, 21,665.24 and 8,529.37 is: 11,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.51 : 21,665.24 = 8,529.37 : x
  2. Step 2: Convert to fraction form
    15,699.51/21,665.24 = 8,529.37/x
  3. Step 3: Cross multiply
    15,699.51x = 21,665.24 × 8,529.37
  4. Step 4: Simplify right side
    15,699.51x = 184,790,697.13
  5. Step 5: Solve for x
    x = 184,790,697.13/15,699.51
  6. Step 6: Final answer
    x = 11,770.48

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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.