Home / 15,090.96-20,832.84-10,618.56

Finding the Fourth Proportional to 15,090.96, 20,832.84 and 10,618.56

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Solution

The fourth proportional to 15,090.96, 20,832.84 and 10,618.56 is: 14,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.96 : 20,832.84 = 10,618.56 : x
  2. Step 2: Convert to fraction form
    15,090.96/20,832.84 = 10,618.56/x
  3. Step 3: Cross multiply
    15,090.96x = 20,832.84 × 10,618.56
  4. Step 4: Simplify right side
    15,090.96x = 221,214,761.51
  5. Step 5: Solve for x
    x = 221,214,761.51/15,090.96
  6. Step 6: Final answer
    x = 14,658.76

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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.