Home / 12,545.55-18,818.33-3,186.27

Finding the Fourth Proportional to 12,545.55, 18,818.33 and 3,186.27

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Solution

The fourth proportional to 12,545.55, 18,818.33 and 3,186.27 is: 4,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.55 : 18,818.33 = 3,186.27 : x
  2. Step 2: Convert to fraction form
    12,545.55/18,818.33 = 3,186.27/x
  3. Step 3: Cross multiply
    12,545.55x = 18,818.33 × 3,186.27
  4. Step 4: Simplify right side
    12,545.55x = 59,960,170.31
  5. Step 5: Solve for x
    x = 59,960,170.31/12,545.55
  6. Step 6: Final answer
    x = 4,779.40

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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.