Home / 12,887.55-19,331.31-3,527.64

Finding the Fourth Proportional to 12,887.55, 19,331.31 and 3,527.64

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Solution

The fourth proportional to 12,887.55, 19,331.31 and 3,527.64 is: 5,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.55 : 19,331.31 = 3,527.64 : x
  2. Step 2: Convert to fraction form
    12,887.55/19,331.31 = 3,527.64/x
  3. Step 3: Cross multiply
    12,887.55x = 19,331.31 × 3,527.64
  4. Step 4: Simplify right side
    12,887.55x = 68,193,950.16
  5. Step 5: Solve for x
    x = 68,193,950.16/12,887.55
  6. Step 6: Final answer
    x = 5,291.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.