Home / 12,149.16-18,212.80-4,356.15

Finding the Fourth Proportional to 12,149.16, 18,212.80 and 4,356.15

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Solution

The fourth proportional to 12,149.16, 18,212.80 and 4,356.15 is: 6,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.16 : 18,212.80 = 4,356.15 : x
  2. Step 2: Convert to fraction form
    12,149.16/18,212.80 = 4,356.15/x
  3. Step 3: Cross multiply
    12,149.16x = 18,212.80 × 4,356.15
  4. Step 4: Simplify right side
    12,149.16x = 79,337,688.72
  5. Step 5: Solve for x
    x = 79,337,688.72/12,149.16
  6. Step 6: Final answer
    x = 6,530.30

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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.