Home / 11,020.80-16,510.37-8,543.49

Finding the Fourth Proportional to 11,020.80, 16,510.37 and 8,543.49

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Solution

The fourth proportional to 11,020.80, 16,510.37 and 8,543.49 is: 12,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.80 : 16,510.37 = 8,543.49 : x
  2. Step 2: Convert to fraction form
    11,020.80/16,510.37 = 8,543.49/x
  3. Step 3: Cross multiply
    11,020.80x = 16,510.37 × 8,543.49
  4. Step 4: Simplify right side
    11,020.80x = 141,056,138.27
  5. Step 5: Solve for x
    x = 141,056,138.27/11,020.80
  6. Step 6: Final answer
    x = 12,799.08

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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.