Home / 12,222.17-18,338.45-8,277.87

Finding the Fourth Proportional to 12,222.17, 18,338.45 and 8,277.87

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Solution

The fourth proportional to 12,222.17, 18,338.45 and 8,277.87 is: 12,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.17 : 18,338.45 = 8,277.87 : x
  2. Step 2: Convert to fraction form
    12,222.17/18,338.45 = 8,277.87/x
  3. Step 3: Cross multiply
    12,222.17x = 18,338.45 × 8,277.87
  4. Step 4: Simplify right side
    12,222.17x = 151,803,263.71
  5. Step 5: Solve for x
    x = 151,803,263.71/12,222.17
  6. Step 6: Final answer
    x = 12,420.33

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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.