Home / 13,091.40-18,064.80-7,426.44

Finding the Fourth Proportional to 13,091.40, 18,064.80 and 7,426.44

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Solution

The fourth proportional to 13,091.40, 18,064.80 and 7,426.44 is: 10,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.40 : 18,064.80 = 7,426.44 : x
  2. Step 2: Convert to fraction form
    13,091.40/18,064.80 = 7,426.44/x
  3. Step 3: Cross multiply
    13,091.40x = 18,064.80 × 7,426.44
  4. Step 4: Simplify right side
    13,091.40x = 134,157,153.31
  5. Step 5: Solve for x
    x = 134,157,153.31/13,091.40
  6. Step 6: Final answer
    x = 10,247.73

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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.