Home / 13,562.54-18,737.70-12,824.36

Finding the Fourth Proportional to 13,562.54, 18,737.70 and 12,824.36

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Solution

The fourth proportional to 13,562.54, 18,737.70 and 12,824.36 is: 17,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.54 : 18,737.70 = 12,824.36 : x
  2. Step 2: Convert to fraction form
    13,562.54/18,737.70 = 12,824.36/x
  3. Step 3: Cross multiply
    13,562.54x = 18,737.70 × 12,824.36
  4. Step 4: Simplify right side
    13,562.54x = 240,299,010.37
  5. Step 5: Solve for x
    x = 240,299,010.37/13,562.54
  6. Step 6: Final answer
    x = 17,717.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.