Home / 15,586.12-21,509.22-8,512.48

Finding the Fourth Proportional to 15,586.12, 21,509.22 and 8,512.48

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Solution

The fourth proportional to 15,586.12, 21,509.22 and 8,512.48 is: 11,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.12 : 21,509.22 = 8,512.48 : x
  2. Step 2: Convert to fraction form
    15,586.12/21,509.22 = 8,512.48/x
  3. Step 3: Cross multiply
    15,586.12x = 21,509.22 × 8,512.48
  4. Step 4: Simplify right side
    15,586.12x = 183,096,805.07
  5. Step 5: Solve for x
    x = 183,096,805.07/15,586.12
  6. Step 6: Final answer
    x = 11,747.43

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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.