Home / 13,972.30-20,962.70-4,111.66

Finding the Fourth Proportional to 13,972.30, 20,962.70 and 4,111.66

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Solution

The fourth proportional to 13,972.30, 20,962.70 and 4,111.66 is: 6,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.30 : 20,962.70 = 4,111.66 : x
  2. Step 2: Convert to fraction form
    13,972.30/20,962.70 = 4,111.66/x
  3. Step 3: Cross multiply
    13,972.30x = 20,962.70 × 4,111.66
  4. Step 4: Simplify right side
    13,972.30x = 86,191,516.15
  5. Step 5: Solve for x
    x = 86,191,516.15/13,972.30
  6. Step 6: Final answer
    x = 6,168.74

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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.