Home / 15,507.55-21,406.50-10,993.82

Finding the Fourth Proportional to 15,507.55, 21,406.50 and 10,993.82

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Solution

The fourth proportional to 15,507.55, 21,406.50 and 10,993.82 is: 15,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.55 : 21,406.50 = 10,993.82 : x
  2. Step 2: Convert to fraction form
    15,507.55/21,406.50 = 10,993.82/x
  3. Step 3: Cross multiply
    15,507.55x = 21,406.50 × 10,993.82
  4. Step 4: Simplify right side
    15,507.55x = 235,339,261.35
  5. Step 5: Solve for x
    x = 235,339,261.35/15,507.55
  6. Step 6: Final answer
    x = 15,175.79

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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.