Home / 12,222.14-18,302.18-10,242.56

Finding the Fourth Proportional to 12,222.14, 18,302.18 and 10,242.56

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Solution

The fourth proportional to 12,222.14, 18,302.18 and 10,242.56 is: 15,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.14 : 18,302.18 = 10,242.56 : x
  2. Step 2: Convert to fraction form
    12,222.14/18,302.18 = 10,242.56/x
  3. Step 3: Cross multiply
    12,222.14x = 18,302.18 × 10,242.56
  4. Step 4: Simplify right side
    12,222.14x = 187,461,209.73
  5. Step 5: Solve for x
    x = 187,461,209.73/12,222.14
  6. Step 6: Final answer
    x = 15,337.84

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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.