Home / 11,555.42-17,328.87-4,157.89

Finding the Fourth Proportional to 11,555.42, 17,328.87 and 4,157.89

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Solution

The fourth proportional to 11,555.42, 17,328.87 and 4,157.89 is: 6,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.42 : 17,328.87 = 4,157.89 : x
  2. Step 2: Convert to fraction form
    11,555.42/17,328.87 = 4,157.89/x
  3. Step 3: Cross multiply
    11,555.42x = 17,328.87 × 4,157.89
  4. Step 4: Simplify right side
    11,555.42x = 72,051,491.96
  5. Step 5: Solve for x
    x = 72,051,491.96/11,555.42
  6. Step 6: Final answer
    x = 6,235.30

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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.