Home / 11,543.72-17,312.28-4,146.80

Finding the Fourth Proportional to 11,543.72, 17,312.28 and 4,146.80

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Solution

The fourth proportional to 11,543.72, 17,312.28 and 4,146.80 is: 6,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.72 : 17,312.28 = 4,146.80 : x
  2. Step 2: Convert to fraction form
    11,543.72/17,312.28 = 4,146.80/x
  3. Step 3: Cross multiply
    11,543.72x = 17,312.28 × 4,146.80
  4. Step 4: Simplify right side
    11,543.72x = 71,790,562.70
  5. Step 5: Solve for x
    x = 71,790,562.70/11,543.72
  6. Step 6: Final answer
    x = 6,219.01

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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.