Home / 16,784.64-25,166.16-6,390.72

Finding the Fourth Proportional to 16,784.64, 25,166.16 and 6,390.72

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Solution

The fourth proportional to 16,784.64, 25,166.16 and 6,390.72 is: 9,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,784.64 : 25,166.16 = 6,390.72 : x
  2. Step 2: Convert to fraction form
    16,784.64/25,166.16 = 6,390.72/x
  3. Step 3: Cross multiply
    16,784.64x = 25,166.16 × 6,390.72
  4. Step 4: Simplify right side
    16,784.64x = 160,829,882.04
  5. Step 5: Solve for x
    x = 160,829,882.04/16,784.64
  6. Step 6: Final answer
    x = 9,581.97

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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.