Home / 16,211.12-24,316.64-12,518.72

Finding the Fourth Proportional to 16,211.12, 24,316.64 and 12,518.72

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Solution

The fourth proportional to 16,211.12, 24,316.64 and 12,518.72 is: 18,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,211.12 : 24,316.64 = 12,518.72 : x
  2. Step 2: Convert to fraction form
    16,211.12/24,316.64 = 12,518.72/x
  3. Step 3: Cross multiply
    16,211.12x = 24,316.64 × 12,518.72
  4. Step 4: Simplify right side
    16,211.12x = 304,413,207.50
  5. Step 5: Solve for x
    x = 304,413,207.50/16,211.12
  6. Step 6: Final answer
    x = 18,778.05

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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.