Home / 13,220.03-18,244.49-8,735.92

Finding the Fourth Proportional to 13,220.03, 18,244.49 and 8,735.92

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Solution

The fourth proportional to 13,220.03, 18,244.49 and 8,735.92 is: 12,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.03 : 18,244.49 = 8,735.92 : x
  2. Step 2: Convert to fraction form
    13,220.03/18,244.49 = 8,735.92/x
  3. Step 3: Cross multiply
    13,220.03x = 18,244.49 × 8,735.92
  4. Step 4: Simplify right side
    13,220.03x = 159,382,315.79
  5. Step 5: Solve for x
    x = 159,382,315.79/13,220.03
  6. Step 6: Final answer
    x = 12,056.12

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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.