Home / 9,420.63-14,067.28-8,190.87

Finding the Fourth Proportional to 9,420.63, 14,067.28 and 8,190.87

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Solution

The fourth proportional to 9,420.63, 14,067.28 and 8,190.87 is: 12,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.63 : 14,067.28 = 8,190.87 : x
  2. Step 2: Convert to fraction form
    9,420.63/14,067.28 = 8,190.87/x
  3. Step 3: Cross multiply
    9,420.63x = 14,067.28 × 8,190.87
  4. Step 4: Simplify right side
    9,420.63x = 115,223,241.26
  5. Step 5: Solve for x
    x = 115,223,241.26/9,420.63
  6. Step 6: Final answer
    x = 12,230.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.