Home / 12,161.04-18,242.64-4,372.08

Finding the Fourth Proportional to 12,161.04, 18,242.64 and 4,372.08

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Solution

The fourth proportional to 12,161.04, 18,242.64 and 4,372.08 is: 6,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.04 : 18,242.64 = 4,372.08 : x
  2. Step 2: Convert to fraction form
    12,161.04/18,242.64 = 4,372.08/x
  3. Step 3: Cross multiply
    12,161.04x = 18,242.64 × 4,372.08
  4. Step 4: Simplify right side
    12,161.04x = 79,758,281.49
  5. Step 5: Solve for x
    x = 79,758,281.49/12,161.04
  6. Step 6: Final answer
    x = 6,558.51

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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.