Home / 9,142.31-13,713.35-2,216.87

Finding the Fourth Proportional to 9,142.31, 13,713.35 and 2,216.87

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Solution

The fourth proportional to 9,142.31, 13,713.35 and 2,216.87 is: 3,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.31 : 13,713.35 = 2,216.87 : x
  2. Step 2: Convert to fraction form
    9,142.31/13,713.35 = 2,216.87/x
  3. Step 3: Cross multiply
    9,142.31x = 13,713.35 × 2,216.87
  4. Step 4: Simplify right side
    9,142.31x = 30,400,703.13
  5. Step 5: Solve for x
    x = 30,400,703.13/9,142.31
  6. Step 6: Final answer
    x = 3,325.28

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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.