Home / 13,506.96-18,640.98-11,516.88

Finding the Fourth Proportional to 13,506.96, 18,640.98 and 11,516.88

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Solution

The fourth proportional to 13,506.96, 18,640.98 and 11,516.88 is: 15,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.96 : 18,640.98 = 11,516.88 : x
  2. Step 2: Convert to fraction form
    13,506.96/18,640.98 = 11,516.88/x
  3. Step 3: Cross multiply
    13,506.96x = 18,640.98 × 11,516.88
  4. Step 4: Simplify right side
    13,506.96x = 214,685,929.74
  5. Step 5: Solve for x
    x = 214,685,929.74/13,506.96
  6. Step 6: Final answer
    x = 15,894.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.