Home / 15,586.16-21,509.60-8,512.64

Finding the Fourth Proportional to 15,586.16, 21,509.60 and 8,512.64

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Solution

The fourth proportional to 15,586.16, 21,509.60 and 8,512.64 is: 11,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.16 : 21,509.60 = 8,512.64 : x
  2. Step 2: Convert to fraction form
    15,586.16/21,509.60 = 8,512.64/x
  3. Step 3: Cross multiply
    15,586.16x = 21,509.60 × 8,512.64
  4. Step 4: Simplify right side
    15,586.16x = 183,103,481.34
  5. Step 5: Solve for x
    x = 183,103,481.34/15,586.16
  6. Step 6: Final answer
    x = 11,747.83

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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.