Home / 16,388.58-22,609.35-10,423.20

Finding the Fourth Proportional to 16,388.58, 22,609.35 and 10,423.20

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Solution

The fourth proportional to 16,388.58, 22,609.35 and 10,423.20 is: 14,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,388.58 : 22,609.35 = 10,423.20 : x
  2. Step 2: Convert to fraction form
    16,388.58/22,609.35 = 10,423.20/x
  3. Step 3: Cross multiply
    16,388.58x = 22,609.35 × 10,423.20
  4. Step 4: Simplify right side
    16,388.58x = 235,661,776.92
  5. Step 5: Solve for x
    x = 235,661,776.92/16,388.58
  6. Step 6: Final answer
    x = 14,379.63

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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.