Home / 14,156.90-21,235.35-4,161.64

Finding the Fourth Proportional to 14,156.90, 21,235.35 and 4,161.64

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Solution

The fourth proportional to 14,156.90, 21,235.35 and 4,161.64 is: 6,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.90 : 21,235.35 = 4,161.64 : x
  2. Step 2: Convert to fraction form
    14,156.90/21,235.35 = 4,161.64/x
  3. Step 3: Cross multiply
    14,156.90x = 21,235.35 × 4,161.64
  4. Step 4: Simplify right side
    14,156.90x = 88,373,861.17
  5. Step 5: Solve for x
    x = 88,373,861.17/14,156.90
  6. Step 6: Final answer
    x = 6,242.46

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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.