Home / 12,516.29-18,795.87-11,113.86

Finding the Fourth Proportional to 12,516.29, 18,795.87 and 11,113.86

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Solution

The fourth proportional to 12,516.29, 18,795.87 and 11,113.86 is: 16,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.29 : 18,795.87 = 11,113.86 : x
  2. Step 2: Convert to fraction form
    12,516.29/18,795.87 = 11,113.86/x
  3. Step 3: Cross multiply
    12,516.29x = 18,795.87 × 11,113.86
  4. Step 4: Simplify right side
    12,516.29x = 208,894,667.76
  5. Step 5: Solve for x
    x = 208,894,667.76/12,516.29
  6. Step 6: Final answer
    x = 16,689.82

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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.