Home / 16,800.64-25,190.16-6,406.72

Finding the Fourth Proportional to 16,800.64, 25,190.16 and 6,406.72

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Solution

The fourth proportional to 16,800.64, 25,190.16 and 6,406.72 is: 9,605.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800.64 : 25,190.16 = 6,406.72 : x
  2. Step 2: Convert to fraction form
    16,800.64/25,190.16 = 6,406.72/x
  3. Step 3: Cross multiply
    16,800.64x = 25,190.16 × 6,406.72
  4. Step 4: Simplify right side
    16,800.64x = 161,386,301.88
  5. Step 5: Solve for x
    x = 161,386,301.88/16,800.64
  6. Step 6: Final answer
    x = 9,605.96

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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.