Home / 13,079.57-18,043.70-8,041.77

Finding the Fourth Proportional to 13,079.57, 18,043.70 and 8,041.77

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Solution

The fourth proportional to 13,079.57, 18,043.70 and 8,041.77 is: 11,093.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.57 : 18,043.70 = 8,041.77 : x
  2. Step 2: Convert to fraction form
    13,079.57/18,043.70 = 8,041.77/x
  3. Step 3: Cross multiply
    13,079.57x = 18,043.70 × 8,041.77
  4. Step 4: Simplify right side
    13,079.57x = 145,103,245.14
  5. Step 5: Solve for x
    x = 145,103,245.14/13,079.57
  6. Step 6: Final answer
    x = 11,093.89

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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.