Home / 15,586.30-21,509.04-8,512.66

Finding the Fourth Proportional to 15,586.30, 21,509.04 and 8,512.66

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Solution

The fourth proportional to 15,586.30, 21,509.04 and 8,512.66 is: 11,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.30 : 21,509.04 = 8,512.66 : x
  2. Step 2: Convert to fraction form
    15,586.30/21,509.04 = 8,512.66/x
  3. Step 3: Cross multiply
    15,586.30x = 21,509.04 × 8,512.66
  4. Step 4: Simplify right side
    15,586.30x = 183,099,144.45
  5. Step 5: Solve for x
    x = 183,099,144.45/15,586.30
  6. Step 6: Final answer
    x = 11,747.44

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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.