Home / 12,543.80-18,814.71-3,537.55

Finding the Fourth Proportional to 12,543.80, 18,814.71 and 3,537.55

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Solution

The fourth proportional to 12,543.80, 18,814.71 and 3,537.55 is: 5,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.80 : 18,814.71 = 3,537.55 : x
  2. Step 2: Convert to fraction form
    12,543.80/18,814.71 = 3,537.55/x
  3. Step 3: Cross multiply
    12,543.80x = 18,814.71 × 3,537.55
  4. Step 4: Simplify right side
    12,543.80x = 66,558,014.14
  5. Step 5: Solve for x
    x = 66,558,014.14/12,543.80
  6. Step 6: Final answer
    x = 5,306.05

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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.