Home / 12,220.46-18,355.24-11,875.94

Finding the Fourth Proportional to 12,220.46, 18,355.24 and 11,875.94

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Solution

The fourth proportional to 12,220.46, 18,355.24 and 11,875.94 is: 17,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.46 : 18,355.24 = 11,875.94 : x
  2. Step 2: Convert to fraction form
    12,220.46/18,355.24 = 11,875.94/x
  3. Step 3: Cross multiply
    12,220.46x = 18,355.24 × 11,875.94
  4. Step 4: Simplify right side
    12,220.46x = 217,985,728.93
  5. Step 5: Solve for x
    x = 217,985,728.93/12,220.46
  6. Step 6: Final answer
    x = 17,837.77

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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.