Home / 14,153.50-21,230.30-4,292.87

Finding the Fourth Proportional to 14,153.50, 21,230.30 and 4,292.87

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Solution

The fourth proportional to 14,153.50, 21,230.30 and 4,292.87 is: 6,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.50 : 21,230.30 = 4,292.87 : x
  2. Step 2: Convert to fraction form
    14,153.50/21,230.30 = 4,292.87/x
  3. Step 3: Cross multiply
    14,153.50x = 21,230.30 × 4,292.87
  4. Step 4: Simplify right side
    14,153.50x = 91,138,822.54
  5. Step 5: Solve for x
    x = 91,138,822.54/14,153.50
  6. Step 6: Final answer
    x = 6,439.31

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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.