Home / 12,218.56-18,320.64-4,816.96

Finding the Fourth Proportional to 12,218.56, 18,320.64 and 4,816.96

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Solution

The fourth proportional to 12,218.56, 18,320.64 and 4,816.96 is: 7,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.56 : 18,320.64 = 4,816.96 : x
  2. Step 2: Convert to fraction form
    12,218.56/18,320.64 = 4,816.96/x
  3. Step 3: Cross multiply
    12,218.56x = 18,320.64 × 4,816.96
  4. Step 4: Simplify right side
    12,218.56x = 88,249,790.05
  5. Step 5: Solve for x
    x = 88,249,790.05/12,218.56
  6. Step 6: Final answer
    x = 7,222.60

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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.