Home / 15,543.09-21,450.02-8,829

Finding the Fourth Proportional to 15,543.09, 21,450.02 and 8,829

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Solution

The fourth proportional to 15,543.09, 21,450.02 and 8,829 is: 12,184.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.09 : 21,450.02 = 8,829 : x
  2. Step 2: Convert to fraction form
    15,543.09/21,450.02 = 8,829/x
  3. Step 3: Cross multiply
    15,543.09x = 21,450.02 × 8,829
  4. Step 4: Simplify right side
    15,543.09x = 189,382,182.44
  5. Step 5: Solve for x
    x = 189,382,182.44/15,543.09
  6. Step 6: Final answer
    x = 12,184.33

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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.