Home / 11,616.85-17,421.15-4,219.39

Finding the Fourth Proportional to 11,616.85, 17,421.15 and 4,219.39

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Solution

The fourth proportional to 11,616.85, 17,421.15 and 4,219.39 is: 6,327.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,616.85 : 17,421.15 = 4,219.39 : x
  2. Step 2: Convert to fraction form
    11,616.85/17,421.15 = 4,219.39/x
  3. Step 3: Cross multiply
    11,616.85x = 17,421.15 × 4,219.39
  4. Step 4: Simplify right side
    11,616.85x = 73,506,538.99
  5. Step 5: Solve for x
    x = 73,506,538.99/11,616.85
  6. Step 6: Final answer
    x = 6,327.58

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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.