Home / 15,543.65-21,449.57-8,829.26

Finding the Fourth Proportional to 15,543.65, 21,449.57 and 8,829.26

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Solution

The fourth proportional to 15,543.65, 21,449.57 and 8,829.26 is: 12,183.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.65 : 21,449.57 = 8,829.26 : x
  2. Step 2: Convert to fraction form
    15,543.65/21,449.57 = 8,829.26/x
  3. Step 3: Cross multiply
    15,543.65x = 21,449.57 × 8,829.26
  4. Step 4: Simplify right side
    15,543.65x = 189,383,679.02
  5. Step 5: Solve for x
    x = 189,383,679.02/15,543.65
  6. Step 6: Final answer
    x = 12,183.99

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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.