Home / 12,124.72-18,168.45-7,184.53

Finding the Fourth Proportional to 12,124.72, 18,168.45 and 7,184.53

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Solution

The fourth proportional to 12,124.72, 18,168.45 and 7,184.53 is: 10,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.72 : 18,168.45 = 7,184.53 : x
  2. Step 2: Convert to fraction form
    12,124.72/18,168.45 = 7,184.53/x
  3. Step 3: Cross multiply
    12,124.72x = 18,168.45 × 7,184.53
  4. Step 4: Simplify right side
    12,124.72x = 130,531,774.08
  5. Step 5: Solve for x
    x = 130,531,774.08/12,124.72
  6. Step 6: Final answer
    x = 10,765.76

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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.