Home / 17,904.78-26,820.61-8,516.40

Finding the Fourth Proportional to 17,904.78, 26,820.61 and 8,516.40

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Solution

The fourth proportional to 17,904.78, 26,820.61 and 8,516.40 is: 12,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904.78 : 26,820.61 = 8,516.40 : x
  2. Step 2: Convert to fraction form
    17,904.78/26,820.61 = 8,516.40/x
  3. Step 3: Cross multiply
    17,904.78x = 26,820.61 × 8,516.40
  4. Step 4: Simplify right side
    17,904.78x = 228,415,043.00
  5. Step 5: Solve for x
    x = 228,415,043.00/17,904.78
  6. Step 6: Final answer
    x = 12,757.21

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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.