Home / 15,578.96-21,498.08-8,866.22

Finding the Fourth Proportional to 15,578.96, 21,498.08 and 8,866.22

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Solution

The fourth proportional to 15,578.96, 21,498.08 and 8,866.22 is: 12,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.96 : 21,498.08 = 8,866.22 : x
  2. Step 2: Convert to fraction form
    15,578.96/21,498.08 = 8,866.22/x
  3. Step 3: Cross multiply
    15,578.96x = 21,498.08 × 8,866.22
  4. Step 4: Simplify right side
    15,578.96x = 190,606,706.86
  5. Step 5: Solve for x
    x = 190,606,706.86/15,578.96
  6. Step 6: Final answer
    x = 12,234.88

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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.