Home / 13,320.66-20,003.67-12,763.38

Finding the Fourth Proportional to 13,320.66, 20,003.67 and 12,763.38

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Solution

The fourth proportional to 13,320.66, 20,003.67 and 12,763.38 is: 19,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.66 : 20,003.67 = 12,763.38 : x
  2. Step 2: Convert to fraction form
    13,320.66/20,003.67 = 12,763.38/x
  3. Step 3: Cross multiply
    13,320.66x = 20,003.67 × 12,763.38
  4. Step 4: Simplify right side
    13,320.66x = 255,314,441.60
  5. Step 5: Solve for x
    x = 255,314,441.60/13,320.66
  6. Step 6: Final answer
    x = 19,166.80

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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.