Home / 12,124.60-18,189.36-4,333.21

Finding the Fourth Proportional to 12,124.60, 18,189.36 and 4,333.21

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Solution

The fourth proportional to 12,124.60, 18,189.36 and 4,333.21 is: 6,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.60 : 18,189.36 = 4,333.21 : x
  2. Step 2: Convert to fraction form
    12,124.60/18,189.36 = 4,333.21/x
  3. Step 3: Cross multiply
    12,124.60x = 18,189.36 × 4,333.21
  4. Step 4: Simplify right side
    12,124.60x = 78,818,316.65
  5. Step 5: Solve for x
    x = 78,818,316.65/12,124.60
  6. Step 6: Final answer
    x = 6,500.69

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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.