Home / 15,590.09-21,513.97-8,516.54

Finding the Fourth Proportional to 15,590.09, 21,513.97 and 8,516.54

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Solution

The fourth proportional to 15,590.09, 21,513.97 and 8,516.54 is: 11,752.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.09 : 21,513.97 = 8,516.54 : x
  2. Step 2: Convert to fraction form
    15,590.09/21,513.97 = 8,516.54/x
  3. Step 3: Cross multiply
    15,590.09x = 21,513.97 × 8,516.54
  4. Step 4: Simplify right side
    15,590.09x = 183,224,532.28
  5. Step 5: Solve for x
    x = 183,224,532.28/15,590.09
  6. Step 6: Final answer
    x = 11,752.63

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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.