Home / 16,869.43-25,319.51-8,978.58

Finding the Fourth Proportional to 16,869.43, 25,319.51 and 8,978.58

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Solution

The fourth proportional to 16,869.43, 25,319.51 and 8,978.58 is: 13,476.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.43 : 25,319.51 = 8,978.58 : x
  2. Step 2: Convert to fraction form
    16,869.43/25,319.51 = 8,978.58/x
  3. Step 3: Cross multiply
    16,869.43x = 25,319.51 × 8,978.58
  4. Step 4: Simplify right side
    16,869.43x = 227,333,234.87
  5. Step 5: Solve for x
    x = 227,333,234.87/16,869.43
  6. Step 6: Final answer
    x = 13,476.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.