Home / 16,420.05-22,659.27-9,152.09

Finding the Fourth Proportional to 16,420.05, 22,659.27 and 9,152.09

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Solution

The fourth proportional to 16,420.05, 22,659.27 and 9,152.09 is: 12,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,420.05 : 22,659.27 = 9,152.09 : x
  2. Step 2: Convert to fraction form
    16,420.05/22,659.27 = 9,152.09/x
  3. Step 3: Cross multiply
    16,420.05x = 22,659.27 × 9,152.09
  4. Step 4: Simplify right side
    16,420.05x = 207,379,565.08
  5. Step 5: Solve for x
    x = 207,379,565.08/16,420.05
  6. Step 6: Final answer
    x = 12,629.65

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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.